Abu Dhabi Utilit Corridors Design ManualVersion 1The Abu Dhabi Urban Planning Council was created by Law no. 23 of 2007 and is the agency responsible for the future of Abu Dhabis urban and regional environments, andtheexpertauthoritbehindthevisionaryAbuDhabiVision2030UrbanStructureFrameworkPlanpublishedSeptember2007.ChairedbyHisHighnessGeneral Sheikh Mohamed bin Zayed Al Nahyan, Crown Prince of Abu Dhabi, Deput Supreme Commander of the UAE Armed Forces and Chairman of the Abu Dhabi Executive Council, the Abu Dhabi Urban Planning Council denes the shape of human setlements in the Emirate, ensuring factors such as sustainabilit, infrastructure capacit, communit planning and qualit of life, by overseeing development in the cities and in the Emirate as a whole. The Abu Dhabi Urban Planning Council ensures best practice in planning for both new and existing setlements.The Abu Dhabi Urban Planning Councils primary purpose is to deliver upon the vision of His Highness Sheikh Khalifa bin Zayed Al Nahyan, President of the United Arab Emirates and Ruler of Abu Dhabi, for the continued fulllment of the grand design envisaged by the late Sheikh Zayed bin Sultan Al Nahyan, Father of the Nation, and the ongoing evolution of the Emirate of Abu Dhabi. By drawing on urban planning expertise from local Emiratis, throughout the Arab States of the Gulf, and around the world, the Abu Dhabi Urban Planning Council strives to be a global authorit on the future of urban planning and design.Mandate of the Abu Dhabi Urban Planning CouncilChapter 1 -Foundation1.1Introduction1.2Manual Goals and Intent1.3Overview of Abu Dhabi 2030 Plans /Urban Street Design Manual (USDM)1.4Compliance with the Abu Dhabi Urban Street Design Manual1.5Manual Jurisdiction1.6Applying this Manual1.7Manual Applicabilit1.8Design FlexibilitChapter 2 -Stakeholders and Utilities2.1Authorities and Utilit Providers2.2Types of Utilities2.3Coordination and Management of Utilit CorridorsChapter 3 -Design and Approval Process3.1Introduction3.2Design Process3.3Design Options3.4Submission ProcedureChapter 4 -Utilit Corridor Design4.1Right-of-Ways (ROW) Determined by the Abu Dhabi Urban Street Design Manual (USDM)4.2Design Considerations and Requirements4.3Utilit Installation, Operation and Maintenance OverviewChapter 5 -Utilit Corridors Guidelines5.1Introduction5.2Utilit Corridors Disposition /Arrangement5.3Utilit Arrangement Special DetailsTable of Contents Abu Dhabi Utilit Corridor Design ManualPage iChapter 6 -Evaluation and Updates6.1Introduction6.2Review Commitee6.3Updating the ManualChapter 7 -Denitions and Abbreviations7.1Denitions7.2AbbreviationsChapter 8 -References8.1ReferencesAnnex A: Utilit Disposition Typical Arrangements AcknowledgementsPage iiFigure 3.1:Utilit Disposition ArrangementFigure 4.1:Typical Arrangement of SL conduits in Tree PitFigure 4.2:Typical Arrangement for FO and HS Duct banksFigure 4.3:Typical Manhole Details for FO CorridorFigure 4.4:Typical Manhole Details for HS CorridorFigure 4.5:Solid Waste Collection Bins SchematicFigure 5.1:Typical Plan Road Surface FinishFigure5.2:Typical Plan Staggering of UtilitiesFigure5.3:Utilit Reservations for Access Lane Cit ContextFigure5.4:Typical Utilit Reservations for Street Cit ContextFigure5.5:Typical Utilit Reservations for Avenue Cit ContextFigure5.6:Typical Utilit Reservations for Boulevard Cit ContextFigure5.7:Typical Utilit Reservations for Access Lane Town ContextFigure5.8:Typical Utilit Reservations for Street Town ContextFigure5.9:Typical Utilit Reservations for Avenue Town ContextFigure5.10:Typical Utilit Reservations for Boulevard Town ContextFigure5.11:Typical Utilit Reservations for Access Lane Commercial ContextFigure5.12:Typical Utilit Reservations for Street Commercial ContextFigure5.13:Typical Utilit Reservations for Avenue Commercial ContextFigure5.14:Typical Utilit Reservations for Boulevard Commercial ContextFigure5.15:Typical Utilit Reservations for Access Lane- Residential ContextFigure5.16:Typical Utilit Reservations for Access Lane- Emirati Neighborhood ContextFigure5.17:Typical Utilit Reservations for Street - Residential and Emirati Neighborhood ContextsFigure5.18:Typical Utilit Reservations for Avenue- Residential and Emirati Neighborhood ContextsFigure5.19:Typical Utilit Reservations for Boulevard - Residential and Emirati Neighborhood ContextsFigure5.20:Typical Utilit Reservations for Access Lane Industrial ContextFigure5.21:Typical Utilit Reservations for Street Industrial ContextFigure5.22:Typical Utilit Reservations for Avenue Industrial ContextFigure5.23:Typical Utilit Reservations for Boulevard Industrial ContextFigure5.24:Typical Arrangement of Utilities at Intersections Access Lane x Access LaneFigure5.25:Surface Finish of Utilities at intersections Access Lane x Access LaneFigure5.26:Typical Arrangement of Utilities at Intersections Option 1Figure5.27:Surface Finish of Utilities at intersections Option 1Figure5.28:Typical Arrangement of Utilities at Intersections Option 2Figure5.29:Surface Finish of Utilities at intersections Option 2Figure5.30:Typical Arrangement of Utilities at Intersections Option 3Figure5.31:Surface Finish of Utilities at intersections Option 3Figure5.32:Typical Arrangement of Utilities at RoundaboutsFigure5.33:Surface Finish of Utilities at RoundaboutsFigure5.34:Typical Arrangement of Utilit Tunnel Option 1Figure5.35:Typical Arrangement of Utilit Tunnel Option 2Figure5.36:Typical Utilit Corridor Arrangement for Streets with Metro / Tram Lanes Option 1Figure5.37:Typical Utilit Corridor Arrangement for Streets with Metro / Tram Lanes Option 2List of FiguresPage iiiTable 2.1:Stakeholders Roles and ResponsibilitiesTable3.1:Utilit Disposition ArrangementTable4.1:Cit Context Street ROWTable4.2:Town Context Street ROWTable4.3:Commercial Context Street ROWTable4.4:Residential Context Street ROWTable4.5:Industrial Context Street ROWTable4.6:Emirati Neighborhood Context Street ROWTable4.7:Water Supply Pipe Corridor RequirementsTable4.8:Water Supply Corridor AllocationTable4.9:Wastewater Pipe Corridor RequirementsTable4.10:Wastewater Corridor AllocationTable4.11:Irrigation System Pipe Corridor RequirementsTable4.12:Irrigation System Corridor AllocationTable4.13:Stormwater Drainage Pipe Corridor RequirementsTable4.14:Stormwater Drainage Corridor AllocationTable4.15:District Cooling Pipe Corridor RequirementsTable4.16:District Cooling Chamber Corridor RequirementsTable4.17:District Cooling System Corridor AllocationTable4.18:ADDC / AADC Power Corridor AllocationTable4.19 :Street Lighting Corridor AllocationTable4.20:Preferred Telecom Duct Corridor RequirementsTable4.21:Telecom Corridor AllocationTable4.22:Gas Supply Corridor AllocationTable4.23:Minimum Space Requirements From Gas Installations during Utilit RepairTable5.1:Utilit Reservations for Access Lane Cit ContextTable5.2:Utilit Reservations for Street Cit ContextTable 5.3:Utilit Reservations for Avenue Cit ContextTable5.4:Utilit Reservations for Boulevard Cit ContextTable5.5:Utilit Reservations for Access Lane Town ContextTable 5.6:Utilit Reservations for Street Town ContextTable5.7:Utilit Reservations for Avenue Town ContextTable5.8: Utilit Reservations for Boulevard Town ContextTable5.9:Utilit Reservations for Access Lane Commercial ContextTable5.10:Utilit Reservations for Street Commercial ContextTable 5.11:Utilit Reservations for Avenue Commercial ContextTable5.12:Utilit Reservations for Boulevard Commercial ContextTable5.13:Utilit Reservations for Access Lane- Residential ContextTable 5.14:Utilit Reservations for Access Lane- Emirati Neighborhood Context (Excluding Type 1)Table5.15:Utilit Reservations for Street - Residential and Emirati Neighborhood ContextsTable5.16:Utilit Reservations for Avenue - Residential and Emirati Neighborhood ContextsTable5.17:Utilit Reservations for Boulevard - Residential and Emirati Neighborhood ContextsTable5.18:Utilit Reservations for Access Lane Industrial ContextTable 5.19:Utilit Reservations for Street Industrial ContextTable5.20:Utilit Reservations for Avenue Industrial ContextTable5.21:Utilit Reservations for Boulevard Industrial ContextList of TablesPage ivwww.upc.gov.aeChapter 1 - Foundation1.1Introduction1.2Manual Goals and Intent1.3Overview of Abu Dhabi Emirate 2030 Plans /Urban Street Design Manual (USDM)1.4Compliance with the Abu Dhabi Urban Street Design Manual1.5Manual Jurisdiction1.6Applying this Manual1.7Manual Applicabilit1.8Design FlexibilitChapter 1-2Abu Dhabi Utilit Corridor Design Manual (UCDM)Chapter 1 - Foundation1.1IntroductionTheAbuDhabiUrbanPlanningCouncil(UPC)has created a Utilit Corridor Design Manual (UCDM) that conformsto/complementstheAbuDhabiUrban StreetDesignManual(USDM)issuedin2010,tobe appliedfornewurbandevelopments.TheUSDM denes the Right-of-Way of various families of streets basedonthelandusecontextwithindevelopments. The Utilit Corridor Design Manual (UCDM) denes the locationandwidthofthevariousutilitiesenvisaged tobeconstructedwithinthestreetsofnewurban developments in the Emirate.The target users of the Manual include any part involved directly or indirectly in the design and installation of utilities and all related facilitieswithinurbandevelopments.Accordingly, themaintargetusersinclude,butarenotlimitedto, developers,urbanplanners,infrastructureengineers / designers and contractors involved in the design and constructionofanynewurbandevelopmentwithin the Emirate of Abu Dhabi.TheUCDMshallbeappliedinconjunctionwiththe USDM, the Abu Dhabi Public Realm Design Manual, the BuildingCodepublishedbyconcernedagenciesand theutilitcorridormappingspecicationpublished byDMA,allofwhicharecurrentlyapplicableinthe Emirate of Abu Dhabi.Applicablemanualsthatshouldbeconsidered alongside the UCDM:Abu Dhabi Urban Street Design ManualAbu Dhabi Public Realm Design ManualBuilding CodeUtilit Corridor Mapping Specication1.2Manual Goals and IntentThe UCDM has been prepared to realize the following objectives:Providestandardarrangementsfortheinstallation of utilities within the Right-of-Way of the streets;Assistutilitproviders/developerstocomplete utilitinstallationswithminimumdelaysand minimum interference with other utilities to ensure the timely installation of utilities;Minimizeservicedisruptionsandavoiddamageto adjacentutilitiesduringinstallationand/orrepair of utilities;Minimizedisruptiontothetrafcduringthe installation and maintenance of utilities;Ensure standards and specications are understood and achieved; andStandardize utilit locations to facilitate maintenance activities.FurthertotheManualobjectives,itisexpectedthat theUCDMwillfacilitatethecoordinationbetween thevariousutilitproviders,regulatoryauthorities andconsultantswhichwillminimizethetimetaken for approving the utilit disposition details / drawings. Inaddition,theUCDMwillprovideguidelinesthat will minimize conicts in the design of various utilit allocation. In particular, it clearly denes the location and corridor width for each utiltiy.The preparation of the UCDM comprised the following: Identifingtherequirementsandcurrentpractices ofthevariousstakeholders/utilitproviders/ GovernmentagencieswithintheEmirateofAbu Dhabifortheinstallationandmaintenanceofthe diferent utilities. Incorporatingtherequirementsintheproposed utilitinstallationcongurationssoastoensure thattheproposedreservationsandtheirlocations are achievable, can be constructed and maintained, andareacceptabletotheconcernedauthorities/ utilit providers.Carrying out a bench marking study and comparing the current requirements to international standards and common practices within other countries.Providingguidelinestooptimizetheplacement/ installationofutilitieswithinthelimitedRight-of-Ways (ROWs) of the various street families proposed by the USDM.Chapter 1-3Abu Dhabi Utilit Corridor Design Manual (UCDM)Chapter 1 - FoundationSpecifingthemostappropriate/optimized congurationsforthelocationofthediferent utilities and their respective corridor widths.Deningtpicalutilitdisposition(cross-sections) for the diferent street families within the diferent land use contexts as per the USDM.These shall be adopted for the utilit dispositions within the ROWs ofstreetsforallfuturedevelopmentswithinthe Emirate of Abu Dhabi. 1.3Overview of Abu Dhabi Emirate 2030 Plans / AbuDhabi Urban Street Design Manual (USDM)TheUPChaspublishedthreeregionalframework plans for the future developments within the Emirate of Abu Dhabi.To support the implementation of Plan Capital2030,PlanAlAin2030andPlanAlGharbia 2030,theUPCalsodevelopedtheAbuDhabiUrban StreetDesignManual(USDM)whichpresentsanew view of urban street design practices for the Emirate ofAbuDhabiinaccordancewiththeaspirationsof Vision2030.TheUSDMprescribesgreatermobilit and safet for non-vehicular trafc and deviates from theconventionalclassicationofstreetsbasedon trafc volumes; it also provides street families, which are dened for each land use context.The USDM focuses on pedestrian safet by providing narrower ROWs and travel lane widths that reduce the interactiontimebetweenpedestriansandvehicular trafc. TheUSDMatemptstopromoteurbanidentitand environmentalsustainabilitwithintheEmirateof Abu Dhabi. The USDM provides for high-qualit urban designswhichcaterforallmodesoftransportand renderstheurbanenvironmentapleasantandsafe place to walk, cycle, use public transport and private vehicles.ThedesignapproachadoptedbytheUSDMurges designerstodistributetheestimatedtravel/ tripdemandsovermultiplestreets,ratherthan concentrating the trafc volumes along a main arterial or boulevrad. Trafc distribution is achieved by providing a greater number of alternative travel routes, mainly through an improvedconnectivitofmultiplenarrowerstreets, instead of one wide arterial, within urban areas.TheUSDMpresentstpicalcrosssectionsofurban roadswhicharesubdividedintosixmaincontexts, basedonadjacentlanduse.Inaddition,fourstreet familiesforeachlandusecontextareprovidedto satisf transport demand. As stated in the USDM, the tpical cross sections take into consideration the need to balance all stakeholders requirements to design a transport facilit that ts its applicable seting.Based on the transport demands and the stakeholders requirements for diferent street families within each context, the USDM indicates the various elements for eachstreettpe,alongwiththeirminimumwidth requirements and maximum allowable widths. Using thesecriteriaandthestreetelementsdimensions, the Right-Of-Way for each street tpe is established.Chapter 1-4Abu Dhabi Utilit Corridor Design Manual (UCDM)Chapter 1 - Foundation1.4Compliance with the Abu Dhabi Urban Street Design ManualThe USDM represents a major departure in the design ofstreetsintheEmirateofAbuDhabiforanumber ofreasons.Firstly,thecarriagewaycongurations havebeenredenedtosupportandpromotemore sustainablemodesoftransportsuchaspedestrian walkways,cyclelanes,andmasstransportfacilities. Underthenewdesigncriteriaincorporatedinthe USDM,thepedestrianreplacesthemotorvehicleas thefocalpointoftransport.Inadditiontorefocusing design criteria on pedestrian and alternative modes of transport, the streetscape has been altered signicantly tomakeuseofbuildingstocreateshadeforstreets andtootherbuildingsthusimprovingcooling efciencies within buildings. This trend towards more sustainable design has resulted in narrower ROWs. This fundamental change in the streetscape design resulted intheneedtomakeequallyfundamentalchangesto the utilit dispositions within the determined ROWs of streets.Moreover,becauseamplereservationspacewas providedunderthepreviouswidestreetdesign solutions, utilit corridors have tended to be oversized incomparisontoothercountries,whichwere constrained by narrower ROWs. Chapter 1-5Abu Dhabi Utilit Corridor Design Manual (UCDM)Chapter 1 - Foundation1.5Manual JurisdictionForthepurposeofthisManual,urbanstreetsareall streets within new urban developments of the Emirate of Abu Dhabi. This Manual does not apply to rural roads and freeways. Urban areas/developments are dened in Plan Capital 2030, Plan Al Ain 2030, and Plan Al Gharbia 2030.Withregardtoinstallationand/orreplacement ofutilitieswithinexistingurbanstreets,theguidelines givenintheManualshallbeadopted;however,the location shall be dealt with on a case-by-case basis.Theapprovalofthedesignoftherespectiveutilities remainswithinthejurisdictionoftherelevant authorities / utilit providers listed in Chapter 2.This Manual shall be implemented by the Municipalities ofthediferentregionsintheEmirateofAbu Dhabi.Allproposeddeviationsfromthestandards andprovisionscontainedinthisManualshallbe approvedbytheUPCinadvanceofimplementation. This Manual shall supersede and replace herewith all portionsofAuthorities/utilitprovidersstandards and guidelines pertaining to the utilit corridor width andlocation,whichmaybeinconictwithmaterial contained herein.1.6Applying this ManualThisManualprovidesthegeneralguidelinesand standards for the allocation of utilit corridors within thediferentstreetfamiliesproposedbytheUSDM. ThisManualindicatestherequiredpipe/cableand chamber/manholecorridorwidthsforeachutilit and for each street tpe. Undercertaininstances,morethanoneoptionis proposedforthesamestreettpe.Theseadditional options are included to provide more exibilit for the designer.Typicalplansandsectionsarepresented attheendofthisManualtoillustratetheproposed dispositionforeachstreettpeandeachlanduse context.ThisManualalsoprovidestpicalutilit dispositions/ details at intersections and roundabouts. ItisimportanttonotethatthisManualonlycovers thestandardsolutionswhichareappropriateto address the more common requirements. However, in instances where special design solutions are required, thedesignerneedstodevelopanunderstandingof theapplicablesolutionsasdiscussedinthisManual in order to identif the most appropriate and efective solutions.The provisions of this Manual shall not dispense with any of the design requirements and standards already establishedbytheauthoritiesandutilitproviders withintheEmirateofAbuDhabi,exceptforthose provided for utilit corridor width and utilit corridor location, if these are in conict with the standards and guidelines established in this Manual.Alltrenchandchamber/manholedetailsshallbe inaccordancewiththerequirementsandgeneral detailsoftheconcernedauthorit/utilitprovider, withtheexceptionofthosethatmaybeinconict withthesurfacenishrequirementsasstatedin thisManualand/orintheUSDM.Furthermore,all installationproceduresshallfollowtheguidelinesof the concerned authorit / utilit provider.1.7Manual ApplicabilityTheManualshallbeappliedtonewurban developmentsonlyasdenedbythePlanCapital 2030,PlanAlAin2030,andPlanAlGharbia2030 frameworkplans.Therevitalizationofexisting developmentswillrequireacase-by-casestudyof utilitcorridors,wheresomeoftheutilitiesshown under the carriageway in this Manual could be located outsidethecarriagewaylimitstoavoiddisruptionto trafc. However, the designer shall be guided by this Manualandshalladoptoneoftheoptionsprovided, where possible.Chapter 1-6Abu Dhabi Utilit Corridor Design Manual (UCDM)Chapter 1 - Foundation1.8Design FlexibilityThisManualprovidesacombinationofstandards andguidelinesthatensureexibleandinnovative utilitcorridorlocationandwidthdesign.Generally, standardseithermandatespecicpracticesor prohibitothers,whereasguidelinesaresetsofrules that provide exibilit in the design. ThepurposeofthisManualistodenetheutilit corridorlocationandwidthandNOTtodenethe urbanstreetRight-of-Way(ROW)asthiswillbe dened by the urban planner as per the requirements oftheUSDM.TheROWsofthevariousstreets illustrated in the UCDM represent the minimum ROWs necessary for utilit installation, as per the minimum street element widths dened in the USDM.However, theplannermayincreasetheROWtakinginto considerationtheminimumandmaximumwidthsof thestreetelementsgivenintheUSDMwhilestrictly adhering to the widths of the various utilit corridors dened in the UCDM; under these circumstances the location of some utilities may be altered, as discussed in Section 4.1. Under no circumstances shall the ROW ofthestreetsbeincreasedbasedonincreasingthe utilitcorridorwidths,exceptforthoseconditions identied in the UCDM.Moreover, as indicated in the USDM, some additional public/pedestrianpassagessuchasSikkaand Mushtarakmaybeintroducedwithintheurban developments; under these circumstances the utilities locatedunderthecarriagewayofthestreetsmaybe relocatedtounderthesepassagesasdiscussedin Section 4.1 of this Manual. Inallinstances,thisManualmustbeappliedin conjunctionwithsupportingdocumentsfromall agencieshavingjurisdiction.Designoptionsand guidelines for various street tpes given in this Manual are the preferred design options for utilit disposition withintheurbanstreetsofAbuDhabi.However,the service corridor designs presented in this Manual shall beadoptedinallinstances,exceptinspecialcases where the UPCs approval has been obtained.Wheneveraproposeddesignrequiresdeviation(s) from the set guidelines, alternative solutions shall be presented and agreed in advance with the UPC.www.upc.gov.ae2.1Authorities and Utilit Providers2.2Types of Utilities2.3Coordination and Management of Utilit CorridorsChapter 2 - Stakeholders and UtilitiesChapter 2-2Abu Dhabi Utilit Corridor Design Manual (UCDM)Chapter 2 - Stakeholders and Utilities2.1Authorities and Utility ProvidersTherelevantauthoritiesandutilitproviders responsibleforthevariousutilitinstallationswithin urbanandnon-urbanareasintheEmirateofAbu Dhabi include, but are not be limited to, the following:Abu Dhabi Urban Planning Council(UPC);Department of Municipal Afairs (DMA);Abu Dhabi Municipalit (ADM);Al Ain Municipalit (AAM);Western Region Municipalit (WRM);Western Region Development Council (WRDC);Eastern Region Development Council (ERDC);Abu Dhabi Water and Electricit Authorit (ADWEA);AbuDhabiTransmission&DespatchCompany (TRANSCO)Abu Dhabi Distribution Company (ADDC);Al Ain Distribution Company (AADC);Abu Dhabi Sewerage Services Company (ADSSC);Emirates Telecommunication Corporation (Etisalat);EmiratesIntegratedTelecommunicationsCompany PJSC (du);Abu Dhabi Gas Industries LTD (GASCO);Dolphin Energy (DE);Abu Dhabi National Oil Company (ADNOC);AbuDhabiNationalOilCompanyforDistribution (ADNOC Distribution)AbuDhabiCompanyforOnshoreOilOperations (ADCO);Department of Transport (DoT);Western Region Development Council (WRDC);General Directorate of Civil Defense (ADCD);NationalEmergencyandCrisisManagement Authorit (NECMA);Abu Dhabi Signal Corps;Parks andRecreation Facilities Division (PRFD);Higher Corporation for Specialized Economic Zones, Zones Corp (ZC);Center of Waste Management - Abu Dhabi;General Headquarters of Abu Dhabi Police - GHQ.Theabovelistedauthorities,utilitprovidersand organizations may have a direct role and / or an indirect role in the review and approval of utilit installations and should be consulted during the various stages of design, as applicable.Table2.1listsallstakeholdersthatmaybeinvolved inthereviewandapprovaloftheutilitinstallations and summarizes their roles and responsibilities in this regard. Chapter 2-3Abu Dhabi Utilit Corridor Design Manual (UCDM)Chapter 2 - Stakeholders and UtilitiesTable 2.1: Stakeholders Roles and ResponsibilitiesStakeholders Category Stakeholders Role / ResponsibilitRegulatory Authorities Abu Dhabi Urban Planning Council UPCDepartment o`f Municipal Afairs - DMAAbu Dhabi Municipalit -ADMAl Ain Municipalit - AAMWestern Region Municipalit - WRMWestern Region Development Council - WRDCEastern Region Development Council - ERDCImplement the UCDM, regulate, review and approve any deviations from the guidelines provided in the Manual.Utilit Providers Abu Dhabi Water and Electricit Authorit - ADWEA Abu Dhabi Transmission & Despatch Company - TRANSCOAbu Dhabi Distribution Company - ADDCAl Ain Distribution Company - AADCAbu Dhabi Sewerage Services Company - ADSSCEmirates Telecommunication Corporation - EtisalatEmirates Integrated Telecommunications Company PJSC - duAbu Dhabi National Oil Company for Distribution - ADNOC DistributionNational Emergency and Crisis Management Authorit - NECMAAbu Dhabi Signal CorpsDepartment of Transport - DoTParks and Recreation Facilities Division - PRFDApprove designs of utilit reservations based on the guidelines included in the ManualUsers Higher Corporation for Specialized Economic Zones, Zones Corp - ZC DevelopersConsultants / designersContractorsApply the guidelines included in the Manual so as to ensure conformance to the Abu Dhabi Urban Street Design Manual, Abu Dhabi Public Realm Manual and the Abu Dhabi Utilit Corridor Design Manual.Authorities General Directorate of Civil Defense - ADCDCenter of Waste Management - Abu DhabiGeneral Headquarters of Abu Dhabi Police - GHQDolphin Energy - DEAbu Dhabi National Oil Company for Distribution - ADNOC DistributionAbu Dhabi Company for Onshore Oil Operations - ADCOIndirect role in implementation of the Manual. Consultation in cases where utilities may interfere with their own assets.Chapter 2-4Abu Dhabi Utilit Corridor Design Manual (UCDM)Chapter 2 - Stakeholders and Utilities2.2Types of Utilities The utilities considered in this Manual include all the utilities that are currently used in the Emirate of Abu Dhabiaswellastheutilitiesthatmaybeconsidered in the future.In general, the main utilities that occupy part of roads ROWs (in addition to the clearance) can be divided into the following two categories: Road utilities; and Building utilities Roadutilitiesincludetheinfrastructuresystemsthat servetheroaditself,suchasstormwaterdrainage, streetlighting,beropticsystemsandlandscape irrigation systems.Buildingutilitiesincludeinfrastructuresystems thatservicethebuildingslocatedonthesideofthe road;theseincludethewatersupply,powersupply, telecommunicationsystem,gasnetwork,district coolingsystemandwastewatercollectionsystem. Theseutilitiesfallundertheresponsibilitofthe respectiveutilitprovidersinconjunctionwiththe Municipalities. The utilities covered by the UCDM include:Water distribution system;Wastewater collection system;Landscape irrigation water supply system;Urban stormwater drainage system;Gas network;Powersupply,includinghighvoltage(HV)that supplies primary substations, medium voltage (MV), low voltage (LV);Telecommunication network;Fiberopticnetworks,includingberopticsystems toinclude:theDoTs(IntelligentTransportation System:ITS),ADM-TSS(TrafcControlSystem: TCS),SignalCorp,NationalEmergencyAndCrisis ManagementAuthorit-NECMA(FalconEye),and AD Police;District Cooling Network; andStreet Lighting. In addition to the above, allocation of corridors for trees / landscaping is also accounted for, and guidelines for thearrangementofsolidwastecollectionfacilities/ bins is also provided for.2.3Coordination and Management of Utility CorridorsEfectivemanagementanddesignofutilit installations are imperative for the safe and expedient constructionandmaintenanceoftheroadnetwork. Close coordination with utilit providers is essential to meet these objectives.ThiswillnecessitatethattheUPC,DoT,the Municipalities(ADM,AAM,andWRM),andthe utilitcompaniesrepresentativesmeetregularlyto exchange information to help avoid conicts between utilitcompaniesprojectsandMunicipalprojects, intermsoflocation,constructionormethodof installation of utilities within the ROW of streets.WorkwithinthepublicROWbycontractorsand/orutilitcompaniesrequirespropercoordination betweenthesecompaniesandtheauthoritiesto ensureappropriateutilizationoftheROW.Among theissuesthatneedtobecoordinated,public safet,pedestrians,cyclistsanddriverscomfort, aesthetics and cost-efectiveness of the implemented reinstatementstrategyareconsideredofutmost importance. Chapter 2-5Abu Dhabi Utilit Corridor Design Manual (UCDM)Chapter 2 - Stakeholders and UtilitiesTheoperationandmaintenanceoftheutilitieswill benetfromefcientandefectivecoordination. Inter-agency coordination during the installation and /or operation and maintenance activities will maximize the benets and ensure the following:Reduction in road maintenance costs;Provision ofsmoother roads with fewer closures for maintenance / rehabilitation activities;Provisionofcostefectiveengineeredsolutions which are suitable for the local conditions;Promotionofconsistentpolicieswhicheliminate disputes among stakeholders; andExpeditingprojectdeliveryandavoidanceof projectdelaysinthepreliminaryengineering, preconstruction and construction phases.www.upc.gov.ae3.1Introduction3.2Design Process3.3Design Options3.4Documents to be SubmitedChapter 3 - Design and Approval ProcessChapter 3-2Abu Dhabi Utilit Corridor Design Manual (UCDM)Chapter 3 - Design and Approval Process3.1IntroductionThedesignofutilitcorridorsinvolvesathorough understanding of the design of the new street families andthedenitionofthevariouselementsofthe streets. In addition, a comprehensive understanding of the requirements of all utilit providers and agencies is necessary.This understanding is required to enable the designer toclearlydeneutilitcorridorwidthsandlocations based on the intended use of the street and the tpe ofthedevelopmenttobeserviced.Thefollowing sectionsillustratethedesignprocessthatshallbe adopted during the application of the UCDM.3.2Design ProcessThedesignprocessgenerallyinvolvesseveralsteps thatshallbecarriedoutinachronologicalorderto execute the project objectives.The required steps are as follows:1.Data and information collection;2.Conceptual design development;3.Evaluationandreviewofdesign/obtain preliminary approval / or rejection. 4.Finalize design; and5.Obtain nal approvals.3.2.1Step 1: Gather & Present InformationPrior to the initiation of the design of any development, thedesignershallissueaNoticeofIntent(NOI) requestinginformationonanyexistingutilitiesand/ or constraints imposed by ongoing or planned projects in the vicinit of the development.The design of the utilities and their related disposition drawingswillalsoinvolvethecollectionofallthe relevantdata,standardsanddesignguidelines adoptedbytherespectiveutilitproviders,including the UCDM.Thedesignershallreviewtherequirementsofthe variousauthoritiesandutilitproviderspriorto initiatingconceptualdesignsoftheutilitnetworks. During this step it is essential that the designer agrees on all the requirements with the respective authorities and/orutilitprovider,beforeproceedingwith desgin. Chapter 3-3Abu Dhabi Utilit Corridor Design Manual (UCDM)Chapter 3 - Design and Approval Process3.2.2Step 2: Develop Conceptual DesignThesecondstepinvolvesdevelopingtheconceptual designoftheutilitiestakingintoconsiderationthe planningandtransportationrequirementsofthe development under consideration.This step involves coordinationbetweentheplanners,transport engineersandutilitiesengineersinordertoagree on an optimized design of the roads and utilities that will meet the requirements of the intended use of the development. 3.2.3Step 3: Evaluate & Review DesignDuringthisstep,thedesignershallpreparethe necessarydocumentationincludingthebasisofthe design,drawings,conceptualdesigncalculations, etc.andcoordinatewiththeauthoritiesandutilit providers. The main objective of this step is to ensure that proposed concepts comply with the various utilit providers and authorities requirements. Theutilitengineer shallselecttheutilit arrangementoptions dened in this Manual whichbestsuitthe streetROWsdened bytheurbanplanner andstreetdesigner. Once the most suitable utilitarrangement/dispositioncongurationisselected,thedesigner shallseekpreliminaryapprovalsfortheproposed service corridor from the Town Planning Departments of the relevant Municipalit in order to proceed with nal design.Duringthisstep,thedesignershallalsoobtainthe approvaloftherespectiveutilitprovidersonthe designofutilities.Inaddition,theapprovalofthe UPContheconceptualurbanplanningdesignofthe development shall be secured.3.2.4Step 4: Finalize DesignOncethepreliminaryapprovalsfromtheTown PlanningDepartmentoftherelevantMunicipalit, utilitprovidersandtheUPCareobtained,the designershallproceedwithnalizingthedesigns;in particular,nalizingtheutilitdispositiondrawings forthevariousstreettpeswithinthedevelopment inaccordancewiththeguidelinesprovidedinthis Manual.1. Development of Conceptual DesignDesign review and evaluationDesign, review & evaluateChapter 3-4Abu Dhabi Utilit Corridor Design Manual (UCDM)Chapter 3 - Design and Approval ProcessReview procedures and requirements set by the Municipalities (ADM, AAM, and WRM) with respect to the utilit disposition / arrangement.Prepare utilit disposition sections and plans based on the requirements of the development taking into considera-tion the dened street ROW based on the USDM and planning requirements.Submit utilit disposi-tion plans and sections to the Municipalities for approval.Review Municipalit RequirementsPrepare Design / Utilit Disposition Sections Upon approval by Municipalities, implement any comments and submit the design drawings and documents to Utilit providers for nal approval.Submit to Utilit ProvidersSubmit for Approval3.2.5Step 5: Obtain Final ApprovalsDuringthisstage,thedesignershallsubmitthe naldesignstothediferentagenciestoobtainthe nalNOCandthensubmittheurbandesignofthe development, including the utilit disposition designs, to the UPC for detailed planning approval. 3.3Design Options The utilit disposition sections provided by this Manualin Annex A are intended to account for all utilities currently being installed in Abu Dhabi and other utilities which are expected to be installed in the future. In some instances several options are provided for the same tpe of street; intheseinstances,thedesignershallselecttheoption that is most appropriate for the design.WhereversomeoftheutilitiesincludedintheUCDM are not required, the designer shall maintain the unused allocated corridors as spare corridors.However, if the spare / unused corridors are needed for other utilities, thedesignershallsubmitalternativeproposalsfor utilit dispositions to the UPC for review and approval.The designer shall abide by the required utilit corridors specied in this Manual.If the design of the roads does notallowforastreettpewithalargerROW,andif the design of the utilities require larger corridors, the designer shall:ReceivespecialapprovalforawiderROWinthe speciedstreet,afersubmissionoftechnical justicationsforthewidercorridorrequirements (E.g.:largerpipelinediameterrequiredbasedon hydraulic calculations; number of cables; etc.); orIf the increase of ROW is critical to the development, thedesignermayuseautilittunnel.Thegeneral guidelinesforthedesignofautilittunnelare included in this Manual.Chapter 3-5Abu Dhabi Utilit Corridor Design Manual (UCDM)Chapter 3 - Design and Approval Process3.4Documents to be SubmittedThedesignershallabidebytheproceduresand requirementssetbytheMunicipalities(ADM,AAM, andWRM)withrespecttotheutilitdisposition/arrangementapproval,inaccordancewiththe requirementsofthisManual.Inthisregard,the designershallsubmitalltherequireddocumentsand drawings including but not limited to the following:Detailedutilitdispositionplans,reectingthe relativelocationsofthevariousutilitcorridorsin GISformataspertheUPCsGISsection-Spatial DataSubmissionSpecications,andadoptingan appropriate color coding for each utilit corridor.DetailedutilitdispositionsectioninCAD formatshowingthelocationoftheutilities fromthestreet/carriagewaycenterlinein millimetersormeters.Asampleutilit dispositionsectionisshowninFigure3.1. Thesubmiteddocumentsshallabideby/bein accordancewiththelatestversionoftheUtilit CorridorMappingSpecicationspublishedbythe Department of Municipal Afairs (DMA).Figure 3.1: Utilit Disposition ArrangementAll dimensions are in mmwww.upc.gov.ae4.1Right-of-Ways (ROW) Determined by the Abu Dhabi Urban Street Design Manual (USDM)4.2Design Considerations and Requirements4.3Utilit Installation, Operation and MaintenanceChapter 4 - Utilit Corridor DesignChapter 4-2Abu Dhabi Utilit Corridor Design Manual (UCDM)Chapter 4 - Utilit Corridor Design4.1Right-of-Ways(ROW)Determined bytheAbuDhabiUrbanStreet Design Manual (USDM)The ROW dened by the Abu Dhabi Urban Street Design Manual shall be respected by all proposed designs for utilities.TheUSDMdenesthevariouselementsof the streets and their use.The USDM denes the ROW forthediferenttpesofstreetsbasedontheland use context.A summary of the standard and absolute minimum ROW for the various tpes of street families, asdeterminedbytheUSDM,isprovidedhereafer. Diferent tpes for the same street family are included; also, a description of the elements of each street tpe is presented in Annex A.The ROW, dened in this section for the diferent land usecontexts,istheabsoluteandstandardminimum neededfortheinstallationofutilities.Theplanner maydesignthestreetswithawiderROWbasedon theUSDM,byintroducingtheoptionalelements onthepedestrianrealmorincreasingthewidthof certainelementsasdenedbytheUSDM.Insuch instances,theutilitiesshownunderthecarriageway may be relocated under the sidewalk. The relocation of utilities shall be based on the following:Thetelecomcorridorshallhavetherstpriorit sincethisutilitismorefrequentlyaccessedthan the other utilities placed under the carriageway;Thesecondprioritshallbegiventothedistrict cooling system, if required;Thethirdprioritshallbegiventothegassystem providedtheminimumsafedistancefromtheplot boundary (as per the utilit provider requirements)is satised; andThe wastewater corridor shall be the fourth priorit, followed by the stormwater drainage corridor.Inadditiontothestreetfamiliesdescribedherein, theUSDMintroducesadditionalpublic/pedestrian passages within developments, namely the mushtarak and sikka.In instances where a mushtarak or a sikka is introduced as a parallel passage to one of the street families, and is adjacent to the plot from the rear, the designer may relocate the utilities proposed under the carriageway tothemushtarakorsikkaattherear,providedthe mushtarak or sikka does not run parallel to a primary electricalsubstation.Amushtarakorasikkarunning paralleltoaprimaryelectricalsubstationshallhave theprioritforaccommodatingthepowercables originating from the primary electrical substation.Priorit for relocating utilities from the carriageway to the mushtarak or sikka shall be given to the telecom, districtcoolingsystem,gassystemandwastewater corridorinthesameorder.Subjecttothepreviously statedconditions,thestormwatercorridorshallbe providedinthecarriagewayandinthemushtarakor sikka.Alternative Location for ServicesFront Street Mushtarak / SikkaUtilities within carriageway of front street, could be relocated to Mushtarak or SikkaChapter 4-3Abu Dhabi Utilit Corridor Design Manual (UCDM)Chapter 4 - Utilit Corridor DesignCit ContextWithinacitcontext,theUSDMdenesthe developmentasmixed-usecentralbusinessdistricts (CBD) having high-densit neighborhoods and a high levelofpedestrianactivities.Inthislandusecontext, buildingsaretpicallysevenstoreysorhigher.The ROWofstreetswithinthecitcontextlanduseis given in Table 4.1.Anaccesslanewithinthiscontextisdenedasa serviceroadfromtherearofbuildingsintended forgarage/parkingaccessaswellasforgarbage collectionandotherbuildingservices/maintenance operations.Town ContextWithin a town context, the USDM denes development as mixed-use areas with medium levels of pedestrian activit,wherebuildingsaretpicallythreetosix storeys. The ROW of streets for this land use context is given in Table 4.2. Similar to the cit context, an access lane within this context is dened as a service road.Commercial ContextTheUSDMdenesthecommercialcontextasareas throughoutthecitintendedtoprovideavariet ofworking,shoppingandserviceoptionsand convenience.Anaccesslanewithinthiscontextis dened as a service road, similar to the town and cit contexts.TheROW,asdenedintheUSDMbasedonthe absoluteminimumallowanceforthevariousstreet elements,forthislandusecontextisgiveninTable 4.3.Variations from the absolute minimum denitions given in the USDM are considered in determining the ROW of the various street families; these are claried in Annex A. Table4.1: Cit Context Street ROWStreet FamilyROW Absolute Minimum Type 1 /1A(m)ROW Standard Minimum (Type 2) (m)ROW Standard Minimum (Type 3) (m)Boulevard without frontage 34.50 / 41.0045.00 -Boulevard with frontage 49.80 - -Avenue without frontage 27.30 34.20 38.50Avenue with frontage 41.30 - -Street 17.20 21.40 25.40Access lane 11.30 - -Table4.2: Town Context Street ROWStreet FamilyROW Absolute Minimum Type 1 / 1A (m)ROW Standard Minimum (Type 2) (m)ROW Standard Minimum (Type 3) (m)Boulevard without frontage 33.70 / 40.50 42.20 -Boulevard with frontage 49.00 - -Avenue without frontage 27.90 34.40 37.70Avenue with frontage 41.30 - -Street 17.20 20.20 24.60Access lane 11.30 - -Town ContextCommercial ContextChapter 4-4Abu Dhabi Utilit Corridor Design Manual (UCDM)Chapter 4 - Utilit Corridor DesignResidential ContextWithinaresidentialcontext,theUSDMdenes thedevelopmentasareasthatprovideavarietof housingopportunities,allowingfordensitiesvarying from villas to multi-dwelling residential buildings. The ROWforthislandusecontextisgiveninTable4.4. The access lane in a residential context is intended to providevehicularaccesstovillasandmulti-dwelling residentialbuildings.Basedonthisdenitionofthe access lane, all villas and residential buildings bound by an access lane will be serviced by utilities from the access lane.Industrial ContextWithinanindustrialcontext,theUSDMdenesthe developmentasareasforbusinessesthathave potentialtocreateadversevisualorotherimpacts toadjoiningpublicandresidentialproperties.Uses includelightindustriessuchaswarehousingand distributionwithsupportcommercialservicesand ancillary ofce space. This context however, does not includeheavyindustryzones,sincesuchlanduses mayrequirewiderROWs,widertravellanesandin particularspecialtpes/capacitiesofutilities.Heavy industry zones will be treated on a case-by-case basis. Nevertheless, it is expected that trucks will make up a largerproportionofvehiclesintheindustrialcontext. TheROWforthislandusecontextisbasedonthe absolute minimum requirements of the USDM is given in Table 4.5.The designer shall dene the ROW for streets within this context based on USDM requirements and is allowed to increase the travel lane width; however, the utilit corridors within this context shall be as dened in this Manual. Table4.3: Commercial Context Street ROWStreet FamilyROW Absolute Minimum Type 1 / 1A (m)ROW Standard Minimum (Type 2) (m)ROW Standard Minimum (Type 3) (m)Boulevard without frontage 33.70/ 40.5044.60 -Boulevard with frontage 48.90 - -Avenue without frontage 27.90 34.00 37.90Avenue with frontage 40.30 - -Street 17.20 20.20 24.60Access lane 11.30 - -Table4.4: Residential Context Street ROWStreet FamilyROW Absolute Minimum Type 1 / 1A (m)ROW Standard Minimum (Type 2) (m)ROW Standard Minimum (Type 3) (m)Boulevard without frontage 32.50 / 41.0043.10 -Boulevard with frontage 47.70 - -Avenue without frontage 26.20 32.50 37.30Avenue with frontage 40.10 - -Street 15.50 18.80 23.80Access lane 13.90 - -Residential ContextChapter 4-5Abu Dhabi Utilit Corridor Design Manual (UCDM)Chapter 4 - Utilit Corridor DesignEmirati Neighborhood ContextFor the purposes of utilit disposition and the UCDM, avariationfromtheresidentialcontextwascreated, namely the Emirati neighborhood context.Within this context the ROW is similar to those of the residential context,withtheexceptionoftheaccesslanestreet tpe.Inthiscontext,specialaccesslanetpeshave beendenedandaredesginedtomeetthespecial requirementswithinanEmiratineighborhood.Three tpesofaccesslanesareintroduced;thedesigner shallselectthemostsuitableforutilitdisposition/ arrangementbasedontheallocatedROW.TheROW for the various street tpes within this context is given in Table 4.6.Table4.5: Industrial Context Street ROWStreet FamilyROW Absolute Minimum Type 1 / 1A (m)ROW Standard Minimum (Type 2) (m)ROW Standard Minimum (Type 3) (m)Boulevard without frontage 32.50/ 39.4044.00 -Boulevard with frontage 49.40 - -Avenue without frontage 26.80 33.20 38.60Avenue with frontage 41.70 - -Street 18.30 21.60 26.40Access lane 12.90 - -Table4.6: Emirati Neighborhood Context Street ROWStreet FamilyROW Absolute Minimum Type 1 / 1A (m)ROW - StandardMinimum (Type 2) (m)ROW - StandardMinimum (Type 3) (m)Boulevard without frontage 32.50 / 41.0043.10 -Boulevard with frontage 47.70 - -Avenue without frontage 26.20 32.50 37.30Avenue with frontage 40.10 - -Street 15.50 18.80 23.80Access lane 13.9015.70 18.30Industrial ContextEmirati NeighborhoodChapter 4-6Abu Dhabi Utilit Corridor Design Manual (UCDM)Chapter 4 - Utilit Corridor Design4.2Design Considerations and Requirements Severalfactorsafectthedesignofutilitcorridors.Somefactorsmightdifer dependingontheutilitinquestion;however,manyfactorsarecommonand govern the design of corridors for almost any utilit. Moreover, factors are divided into two major categories; factors which govern the corridor in terms of its width, and factors which govern the corridor in terms of its location. Therequiredcorridorwidthsarenormallygovernedbytheminimumwidth needed to properly install the utilit and this comprises proper excavation, laying, backlling, compaction and reinstatement. The corridor width is also governed by the size / width of the associated chambers and manholes that are installed along the corridor. Otherfactorsalsoincludeoperationandmaintenance,repairandreplacement requirements. Factors governing the location of the corridor include clearance requirements from other utilities (mainly applicable between water and wastewater /treated sewage efuent (TSE)), clearance requirements from plot limits and connections to plots and inspection chambers, in addition to public safet considerations. Otherimportantconsiderationsinlocatingutilitiesarethefactorswhichgovern whether a utilit can be installed under the carriageway or whether it should be placed under the sidewalk. Utilities which require frequent access should not be placed under the carriageway becauseoperationandmaintenancerequirementsmaycausefrequenttrafc interruptions and frequent asphalt cuting and repairs. Also,pressurizedpipessuchaswaterandirrigationwatersupplypipesmight cause signicant damage to asphalted roads if pipe failure occurs; consequently, these utilities are normally placed under sidewalks and / or block paved surfaces. The utilities that can be accessed for repair through manholes are selected to be installed under the travel lanes / carriageway.InordertoreducethewidthoftheROWandoptimizethelocationofeach utilitcorridorwidth,thedesignoftheutilitcorridorsshalladopttheconcept ofstaggering,wherebyappurtenances(chambersandmanholes)areallowedto extend beyond the corridor limits to a shared corridor between adjacent utilities. Chapter 4-7Abu Dhabi Utilit Corridor Design Manual (UCDM)Chapter 4 - Utilit Corridor DesignHowever in all instances, the encroachment shall respect the minimum clearance from the utilit pipe / cable and accordingly, no encroachment on the pipe / cable corridor shall be allowed. This is mainly applicable to utilities which require a wider corridor at the locations of the appurtenances / chambers. Thus, a shared corridor is created between adjacent utilities to accommodate the appurtenancesoftheutilities.Eachutilitshallhaveadedicatedcorridorthat accommodates the minimum pipe / cable requirements, referred to as the pipe / cable corridor.Inaddition,minimumclearanceof1.0mshallbemaintainedbetweentheplot boundaryandtherstutilitadjacenttoit.Clearancenexttotheplotboundary shallbeusedfortheinstallationofinspectionchambers/houseconnections. Consequently,theplotboundarywallfoundationshallnotbeallowedtoextend beyond the plot boundary limit into the ROW.All utilities shall be installed up to the plot boundary limit, whereby the pipe and / or cable shall be extended to the inspection chamber, valve box, etc. near the plot boundary.For utilities installed on one side of the ROW or under the carriageway, ducts for utilit crossing to the opposite plot shall be installed at the same time the primary system is installed within the ROW.SIDEWALKDEDICATED CORRIDOR SHARED CORRIDORSIDEWALK TRAVEL LANES (ASPHALT) PARKING LANES(BLOCK PAVED)Chapter 4-8Abu Dhabi Utilit Corridor Design Manual (UCDM)Chapter 4 - Utilit Corridor Design4.2.1Water Supply CorridorTwo criteria govern the required corridor width for the watersupplynetwork.Therstisthepipecorridor widthdeterminedbythepipesize/diameter,and thesecondisthechambercorridorwidth,which isdeterminedbythewidthofappurtenance(s)/ chambers.Whiletheformerdictatestheminimum width to house the pipe, the later is normally required to house the outer width / dimension of the chambers / manholes, as required. Ingeneral,thereghtingnetworkiscombined withthepotablewaternetwork.Ininstanceswhere a dedicated ring main is required for the re ghting networktoensuretheminimumrequiredresidual pressure at the hydrants, the ROW under the sidewalk shall be increased to accommodate re ghting pipes subject to UPC approval.4.2.1.1Water Supply Pipe Corridor WidthRequirementsPipecorridorwidthrequirementsarebasedonthe pipematerialand/orpipediameter.Pipediameters vary depending on the land use context as well as the streettpe,aslargerstreetsareexpectedtocontain larger pipes. Minimumpipecorridorwidthrequirementswere estimatedbasedonbestpracticeproceduresinAbu DhabiEmirate,therequirementsfordiferentpipe diameters are shown in Table4.7. 4.2.1.2Water Supply AppurtenancesInadditiontoisolationvalvechambers,water networkscompriseotherchambers/appurtenances including washout valve chambers, air vent chambers, owmeterchambers,sectormeterchambers,re hydrants and several others. AlldetailsshallbeinaccordancewithADWEA/TRANSCO / ADDC / AADC standards and tpical details. External chamber dimensions shall be limited to 1.5m forallpipeswithdiameterslessthanorequalto 300mm and shall not exceed 2.2m, for pipe diameters between300mmand600mm,and2.7mforlarger diameters, as shown on the tpical sections in Annex A.Forvalvechambersatintersectingpipes,itis recommendedtoutilizechambersforsinglevalve installation so as to reduce the chamber dimensions. IninstanceswheretwovalvesareinstalledataT connection,itisrecommendedthatthevalvesare installedinseparatechambersbeforethestreet intersection.Howeverifacommonchamberforthe valves is to be used, the chamber shall be allowed to encroach on the adjacent clearance corridor from the plot boundary.Table4.7: Water Supply Pipe Corridor RequirementsPipe Diameter (mm) Pipe Corridor Width (mm)150 500200 600300 700400 1000500 1200600 1300700 1400800 1500900 16001000 1800Chapter 4-9Abu Dhabi Utilit Corridor Design Manual (UCDM)Chapter 4 - Utilit Corridor Design4.2.1.3Water Supply Chamber CorridorThe minimum chamber corridor width shall be equal tothewidthofthelargestchamberrequiredforthe pipeinstalledandshallatnopointbelessthanthe required pipe corridor width. IninstanceswherethestreetROWislimited,the chambers shall be allowed to encroach on the corridor of the adjacent utilit provided the pipe corridor width of the adjacent utilit is maintained. Basedonthesameprinciple,chambers/ appurtenances of adjacent utilities shall be allowed to encroach on the water chamber corridor provided the required pipe corridor width is maintained. Thestandardminimumpipeandchambercorridor widthsrequiredforthewaterpipesforthediferent street families are presented in Table4.8.InsomeinstanceswheretheROWislimited,and takingintoconsiderationthelandusecontextand expecteddemands,absoluteminimumpipeand chambercorridorwidthsarealsoestimatedandare included in Table 4.8 between parentheses.4.2.1.4Water Supply Special ArrangementsAlthoughthecorridorallocations,assummarized inTable 4.8,canaccommodatemostwater appurtenances,afewspecicappurtenances/chambersmightrequirespecialarrangements/considerations.Accordingly, the designer shall provide thenecessaryallocationswithinthedevelopment planoutsidetheROWofthestreets(awayfrom footpathsandthefurnishingzone)forthefollowing appurtenances, whenever required:District Meters (DMS) shall be installed in open areas. IninstanceswheretheDMSneedtobeinstalled withinthestreetROW,alocalizedwideningofthe street ROW can be considered;Bulkconnectionsshallbeplacedwithintheplot boundarywhileprovidingaccessibilittoADWEA/ADDC / AADC staf;Washoutchambersshallbeinstalled,whenever possible, within parks and open spaces;Firehydrantsshallbeinstalledwithinthetree corridor; andFlow meters shall be installed within buildings plots. Inaddition,TRANSCOwaterlinesshallbeaccounted forbythedesignerasperTRANSCOwatercorridor requirements,independentlyoftheaboverequired water corridors.TRANSCOwatercorridorsshallbeinstalledbasedon oneofthefollowingguidelinesafersecuringUPC approval on the approach adopted:Increasing the ROW of the street where a TRANSCO water main is installed; orIntroducingwithinthedevelopmentadedicated corridor for the TRANSCO water main. Table4.8: Water Supply Corridor AllocationStreet Family Side 1 Side 2Pipe Corridor Width (m)Chamber Corridor Width (m)Pipe Corridor Width (m)Chamber Corridor Width (m)Access lane 1.0 1.5 1.0 1.5Street 1.0 1.5 1.0 1.5Avenue 1.0 1.5 1.3 (1.0)2.2 (1.5)Boulevard 1.0 1.5 1.8 (1.3)2.7 (2.2)(x) Indicates the absolute minimum pipe and chamber corridor widthChapter 4-10Abu Dhabi Utilit Corridor Design Manual (UCDM)Chapter 4 - Utilit Corridor Design4.2.1.5Water Supply System Pipe DepthThedepthofthewatersupplysystemshallbein accordancewiththerequirementsofADDC/AADC. Theminimumdepthsforwaterpipesareshownin Annex A.The designer shall take into consideration varying the depthofwaterpipessoastoallowforthevertical clearanceofpipeandotherutilities,inparticularat intersections and for house connection installation. In all instances, the water pipe shall be installed above wastewaterandirrigationpipeswithaminimum verticalclearanceof300mm.Inthecasewherean irrigationlineorawastewaterlinecrossesovera water pipeline, all pipes shall be encased in concrete or installed within a sleeve.4.2.1.6Location of the Water CorridorTherstcorridorafertheclearancefromtheplot boundary, shall always be reserved for the water lines on both sides of the street.Whenever valve chambers arerequired,thechambersareallowedtoencroach on the clearance from the plot boundary. Whenever the corridor width for the primary main is not sufcientfortheconstructionoftheappurtenances, thechambersareallowedtoencroachonadjacent utilit corridors provided the encroachment does not extend into the pipe / cable corridor reservation of the adjacent utilit.Similarly,adjacentutilitappurtenancesareallowed toencroachonthewatersupplymaincorridor, providedthatsuchencroachmentdoesnotextend into the water main pipe corridor. A minimum clear distance of 1.0m shall be maintained betweenthewatercorridorandanywastewateror irrigation / TSE corridor. This distance can be reduced to 0.8m if a third utilit separates the water from the sewer and / or irrigation lines. Chapter 4-11Abu Dhabi Utilit Corridor Design Manual (UCDM)Chapter 4 - Utilit Corridor Design4.2.2Wastewater Collection CorridorSimilartothewatersupplysystem,twocriteria dictate the required corridor width for the wastewater collection network. The rst is the pipe corridor width asdeterminedbythepipediameter,andthesecond isthemanholewidth/diameter.Whiletheformer imposestheminimumwidthrequiredforthewhole lengthofthecorridor,thelaterisnormallyrequired atconnectionsandchangesindirectionorslopesat manhole locations.4.2.2.1Wastewater Pipe Corridor WidthRequirementsPipe corridor width requirements are generally based on pipe diameters. The required pipe diameter varies dependingonthewastewaterowwhichinturn depends on the land use context as well as the street tpe. In general, larger pipes are expected to run within the wider roads. The pipe corridor width requirements for the diferent pipe diameters are shown in Table4.9.4.2.2.2Wastewater ManholesManholedimensionsanddetailsshallbein accordancewithADSSCsstandardsandtpical details.Accordingly,manholedimensionsarelimited to2.0mforallpipeslessthan500mmindiameter, 2.8mforallpipesbetween500mmand900mmin diameter and 3.2m for larger pipe diameters.In some locations the manhole dimension might be 4.0m so as toaccommodatemanholesforpipeswithdiameters larger than 1400mm.4.2.2.3Wastewater Pipe DepthTheminimumdepthofthewastewaterpipeshallbe inaccordancewiththerequirementsofADSSC,and as per the design requirements .The minimum depth of wastewater pipes are shown on the tpical sections in Annex A.In all instances, the wastewater pipe shall be installed below water pipes with a minimum vertical clearance of300mminaccordancewithutilitproviders requirements.Inthecasewhereawastewaterpipe crossesoverawaterpipeline,especiallyathouse connections, all pipes shall be encased in concrete or installed within a sleeve.Table4.9: Wastewater Pipe Corridor RequirementsPipe Diameter (mm) Pipe Corridor Width (mm)200 500300 600400 800500 930600 1050700 1180800 13001000 15501200 18001400 20501600 2300Manhole Ring InstallationChapter 4-12Abu Dhabi Utilit Corridor Design Manual (UCDM)Chapter 4 - Utilit Corridor Design4.2.2.4Wastewater CorridorTheminimumcorridorwidthshallbeequaltothe width / diameter of the largest manhole along the pipe andshallatnopointbelessthantherequiredpipe corridor width. IninstanceswherethestreetROWislimited,the manholesshallbeallowedtoencroachonthe adjacent space, which is dened as a shared corridor between adjacent utilities.The shared corridor shall undernocircumstancesextendintothededicated pipe/cablecorridoroftheadjacentutilit.Based onthesameprinciple,chambers/appurtenances ofadjacentutilitiesshallbeallowedtoencroachon thewastewatercorridorprovidedtherequiredpipe corridor width for wastewater pipes is maintained.Thestandardminimumpipeandmanholecorridor widthsrequiredforthewastewatersystemforthe diferent street families are presented in Table4.10.InsomeinstanceswheretheROWislimited,and takingintoconsiderationthelandusecontextand expecteddischargesfromthevariousbuildings/ dwellingsalongthestreets,thepipeandmanhole corridor widths may be eliminated as shown in Table 4.10 between parentheses.4.2.2.5Location of the Wastewater CorridorAminimumclearanceof1.0mshallbemaintained betweenthewastewatercorridorandanypotable water corridors. This distance can be reduced to 0.8m if a third utilit separates the two corridors. Wastewatercorridorsshallbeallowedunderthe carriageway wherever placement under the sidewalk and / or block paved surfaces is not possible.4.2.2.6Wastewater Force MainsWastewaterforcemainsshallbeinstalledin accordance with ADSSC requirements.Based on the design of the wastewater system, the force main shall beinstalledwithinadedicatedcorridorunderthe sidewalkinaccordancewithADSSCcorridorwidths forforcemainrequirements.Thedesignershall submitthe proposed increase in the ROW, supported byjusticationandnecessarydocumentation,tothe UPC for approval.Table4.10: Wastewater Corridor AllocationStreet Family Side 1 Side 2Pipe Corridor Width (m)Manhole Corridor Width (m)Pipe Corridor Width (m)Manhole Corridor Width (m)Access lane 1.05 2.00 - -Street 1.05 (0.0)2.00 (0.0)1.05 2.00Avenue* 1.05 2.00 1.55 2.80Boulevard 1.05 2.00 1.55 2.80* Larger corridors are given for the main sewer line when possible.(x) Indicates the absolute minimum pipe and manhole corridor widthChapter 4-13Abu Dhabi Utilit Corridor Design Manual (UCDM)Chapter 4 - Utilit Corridor Design4.2.3Irrigation / TSEAsisthecaseforwaterandwastewater,thesame twocriteriadictatetherequiredcorridorwidthfor theprimaryirrigationwatersupplynetwork.These are the pipe corridor width and the dimensions of the appurtenance(s).Theminimumcorridorwidthshall bethatimposedbythepipecorridorrequirements whichisdeterminedbythepipediameter.The maximumcorridorwidthallowedisbasedonthe outerdimensionsoftheappurtenances/chambers used for irrigation systems.4.2.3.1Irrigation Pipe Corridor WidthRequirementsPipecorridorwidthrequirementsarebasedonthe pipematerialand/orpipediameter.Generally, irrigationpipesareeitherductileironpipes,PVCor HDPE pipes. Irrigation pipe diameters vary depending onthelandscapeschemewhichmayvaryfromone landusecontexttoanother.Sinceirrigationsystems withinurbanareasaregenerallydecentralized,the maximum pipe diameter of these systems should not exceed 600mm.ThisManualprovidescorridorsforlargerdiameters toprovideexibilitforthedesignerinproviding aprimarysupply/transmissionmainthroughthe development.The larger corridors are only permited on wider streets or in open spaces. The pipe corridor widthrequirementsforthediferentpipediameters are shown in Table 4.11.4.2.3.2Irrigation AppurtenancesIrrigationsystemappurtenancesmainlyinclude isolation valve chambers.However, other tpes may beusedonprimarysupplymains,suchaswashout valve chambers, and air vent chambers. All details shall be in accordance with Municipalit and PRFD standards and tpical details, with the exception ofsurfacenishes,whichshallbeinaccordance with the requirements of the USDM and Public Realm Manual. External chamber dimensions shall be limited to1.5mforallpipeswithdiameterslessthanor equal to 300mm and shall not exceed 2.2m for larger diameters.Forvalvechambersonthemainlineatintersecting pipes, the chamber shall be designed for single valve installation so as to reduce the chamber dimensions. In instances where two valves shall be installed at a T connection, each valve shall be installed in a separate chamber before the street intersection.Table4.11: Irrigation System Pipe Corridor RequirementsPipe Diameter (mm) Pipe Corridor Width (mm)150 500200 550300 680400 1000500 1200600 1300700 1400800 1500900 16001000 1800Chapter 4-14Abu Dhabi Utilit Corridor Design Manual (UCDM)Chapter 4 - Utilit Corridor Design4.2.3.3Irrigation CorridorTheminimumprimaryirrigationcorridorwidthshall be equal to the width required for the pipe installation. The maximum allowed corridor width is determined by the outer dimensions of the largest chamber required for the pipe to be installed.IninstanceswherethestreetROWislimited,the irrigationchambersshallbeallowedtoencroach onthecorridoroftheadjacentutilitprovidedthe pipe/cablecorridorwidthoftheadjacentutilitis maintained. Inmostcases,theirrigationchamberisallowedto encroachonthetreecorridororthestormwaterinlet corridor.Basedonthesameprinciplesoutlinedfor otherutilities,chambers/appurtenancesofadjacent utilitiesshallbeallowedtoencroachontheirrigation corridorprovidedtherequiredpipecorridorwidthis maintained.Thepipeandchambercorridorwidths requiredfortheprimaryirrigationsystemforthe diferent street families are presented in Table4.12.Thenumberofirrigationcorridorsperstreetis determined by the number of tree corridors required. With regard to secondary supply lines, these shall be installedabovetheirrigationpipewithinthesame corridor. 4.2.3.4Irrigation Pipe DepthThedepthofirrigationpipesshallbeinaccordance withtherequirementsofADSSC/PRFD.The minimumdepthofirrigationpipesareshownonthe tpical sections included in Annex A.In all instances, the irrigation pipe shall be installed below water pipes withaminimumverticalclearanceof300mm.In caseswhereanirrigationpipecrossesoverawater pipeline,especiallyathouseconnectionsandat intersections, all pipes shall be encased in concrete or installed within a sleeve.4.2.3.5Special ArrangementsAlthoughtheforegoingcorridorrequirementscan accommodatemostirrigationappurtenances,afew appurtenances/chambersmightrequirespecial arrangements/considerations,suchaswashout chambers. Itisrecommendedthatsuchchambersbeinstalled, wheneverpossible,withinparks,landscapedareas and open spaces.4.2.3.6Location of the Irrigation SystemCorridorA minimum clear distance of 1.0m shall be maintained between the irrigation / TSE corridor and any potable water corridor. This distance can be reduced to 0.8m if a third utilit separates the water from the irrigation / TSE corridor. Irrigationcorridorsshallnotbeallowedunderthe carriageway unless there is no available space under the sidewalk and / or block paved surfaces. However, it is preferable to place the corridor as close as possible to any landscaping strip / tree corridors.Table4.12: Irrigation System Corridor AllocationStreet Family Side 1 Middle Side 2Pipe Corridor Width (m)Chamber Corridor Width (m)Pipe Corridor Width (m)Chamber Corridor Width (m)Pipe Corridor Width (m)Chamber Corridor Width (m)Access lane 0.7 0.7 - - - -Street 0.7 0.7 - - 0.7 0.7Avenue 0.7 0.7 1.1 (0.7)2.0 (0.7)0.7 0.7Boulevard 1.3 (0.9)2.2 (1.9)0.7 0.7 0.7 0.7Irrigation system corridor shall be provided only when a tree or landscaped strip is part of the street elements. (x) Indicates the absolute minimum pipe and chamber and corridor widthChapter 4-15Abu Dhabi Utilit Corridor Design Manual (UCDM)Chapter 4 - Utilit Corridor Design4.2.4Stormwater DrainageThecorridorwidthsforthestormwatercollection systemarealsodeterminedbytherequirementsfor pipe and appurtenance / manhole installation. The pipe corridorwidthisdeterminedbythepipediameters, whereasthemanholecorridorisdeterminedbythe outer dimensions of the storm inlet and / or the outer dimensions of the manholes. Manholedimensionsaredenedasthewidthof rectangularmanholesandthediameterforcircular manholes. The pipe size denes the minimum pipe corridor width required for the whole length of the corridor, and the manhole dimensions dene the manhole corridor. Inadditiontothecorridor(s)requiredforthe stormwatercollectionpipe,corridor(s)forthe stormwaterinletsshallalsobeallocated.Assuch, thisManualdistinguishesbetweenstormwaterinlet corridors and stormwater collection corridors. For access lanes, due to space restrictions, a combined corridorforthestormwatercollectionpipeandthe stormwater inlet shall be used.Thedesignershallconsidertheoptionofeliminating thestormwaterinlet/pipewithinaccesslanesand usesurfacedrainagetoreceiving/intersecting streets, where deemed appropriate.Utilitcorridoroptionsillustratingtheseinstances areshownintheutilitcorridordispositiondetails/sections included in this Manual.Thedesignermayuseswalesforthestormwater drainagewithinthepedestrianzone/sidewalks.In suchinstances,theswalelocationshallnotobstruct pedestrianand/orcyclistsmovement.Theswale couldbelocatedaboveutilities,incoordinationwith the concerned utilit provider. 4.2.4.1Stormwater Drainage Pipe CorridorWidth RequirementsPipecorridorwidthrequirementsaregenerally determinedbytheminimumrequirementsforpipe installationandhencedependonthepipediameter and the tpe of soil. Pipe diameters vary depending on the street tpe and its ROW since in general, stormwater is drained from smallerstreetstolargerstreetsprovidedthegrading allows for such gravit ows. Thedesignerisencouragedinallinstancestoadopt suchaconceptinordertooptimizethestormwater corridor width. The pipe corridor width requirements forthediferentpipediametersareshownin Table4.13.4.2.4.2Stormwater Drainage ManholesManhole dimensions and details shall be in accordance with ADM / PRFD / AAM / WRM standards and tpical details.However,thesurfacenishshallbein accordancewiththerequirementsoftheUSDMand the Public Realm Manual.Table4.13: Stormwater Drainage Pipe Corridor RequirementsPipe Diameter (mm) Pipe Corridor Width (mm)200 500300 600400 800500 930600 1050700 1180800 1300900 14001000 15501200 18001400 20501600 23001800 25502000 2800Chapter 4-16Abu Dhabi Utilit Corridor Design Manual (UCDM)Chapter 4 - Utilit Corridor DesignAccordingtotheapplicable/currentstandards, manhole dimensions are generally limited by 2.5m for allpipeslessthan900mmindiameterand3.0mfor larger pipe diameters. 4.2.4.3Stormwater Drainage Pipe DepthThedepthofstormwaterdrainagepipesshall beinaccordancewiththerequirementsofthe Municipalities,aswellasdesignrequirements. ThetpicalsectionsincludedinAnnexAindicate theminimumdepthrequirementsforstormwater drainage pipes. 4.2.4.4 Stormwater Drainage CorridorThe stormwater corridor width shall be the greater of the width / diameter of the largest manhole along the pipe or the required pipe corridor width. IninstanceswherethestreetROWislimited,the stormwater manholes shall be allowed to encroach on the corridor of the adjacent utilit, provided the pipe /cable corridor of the adjacent utilit is maintained. Similartootherutilities,chambers/appurtenances ofadjacentutilitiesshallbeallowedtoencroachon thestormwatercorridorprovidedtherequiredpipe corridor width is maintained. Stormwater inlet corridors shall have a width of 1.0m, exceptonaccesslanes,wherethewidthcanbe decreased to 0.75m, subject to space limitations.The pipe and manhole corridor widths required for the stormwater pipes for the diferent street families are presented in Table4.14. 4.2.4.5Location of the Stormwater CorridorStormwater inlet corridors shall be located at the edge / curb of the sidewalk. Two tpes of storm inlets shall be used depending on the location of these inlets; these are either curb inlets or gullies. Themainstormwaterpipecorridorshallbelocated underthecarriageway,asshownintheproposed utilit disposition drawings. Ininstanceswherethemajoritofthestormwater drainagepipesareinstalledwithdepthslessthan 900mm, the location of the storm water pipes may be shifed under the sidewalk subject to UPC approval.Ininstanceswhereasubsurfacedrainagesystemis neededtolowerthegroundwatertable,thesystem shall be located within the same corridor allowed for the main stormwater pipe.Table4.14: Stormwater Drainage Corridor AllocationStreet Family Side 1 Side 2Pipe Corridor Width (m)Manhole Corridor Width (m)Pipe Corridor Width (m)Manhole Corridor Width (m)Access lane 1.05 (0.75)2.0(0.75)- -Street 1.50 (1.05)2.30 (2.0)- -Avenue 2.50 (1.05)2.50(2.0)- -Boulevard 3.00 (2.80)3.00 (2.80)1.50 2.30In addition to the above, 1m corridor(s) shall be allocated for stormwater inlets depending on road side slopes, as shown in the sections. When pipe corridor width is the same as manhole corridor width, the indicated dimension includes for both pipe or manhole corridors. (x) Indicates the absolute minimum pipe and manhole corridor widthChapter 4-17Abu Dhabi Utilit Corridor Design Manual (UCDM)Chapter 4 - Utilit Corridor Design4.2.5District Cooling Thecorridorrequirementsforthedistrictcooling system(DCS)aredenedasafunctionofthe supply/returnpipearrangementandthevalve chamberdimensions.Thepipearrangementdenes theminimumpipecorridorwidth,andtheouter dimensions of the valve chamber dene the chamber corridor width.4.2.5.1District Cooling Pipe Corridor WidthRequirementsNormally,DCSpipecorridorsareexpectedtohouse two district cooling pipes (one for supply and one for return).Pipecorridorwidthrequirementsarebased onthediametersofthepipeswhichinturnvary dependingonthelandusecontextaswellasthe street tpe. Spacing between the supply and return pipes shall be 300mm.Also,a300mmspacingshallbemaintained between the pipes and the trench walls in addition to the insulation width of 50mm for pipes with diameters lessthan16(400mm)and75mmforpipeswith diameters equal to or greater than 16 (400mm). The total pipe corridor width for district cooling pipes asafunctionofthesupply/returnpipediameters shall be as set out in Table4.15.4.2.5.2District Cooling ChambersThemaximumchambercorridorwidthsfordistrict cooling systems shall be as set out in Table4.16.4.2.5.3District Cooling Pipes DepthGenerally,districtcoolingpipesareinstalleddeeper thananyotherutilit.Indicativedepthsofdistrict coolingpipesareshowninthetpicalsections included in Annex A.4.2.5.4District Cooling CorridorThe DCS corridor width shall not be less than the pipe corridor width for the supply / return pipes. A shared corridor on both sides of the DCS pipe corridor shall be allocated to accommodate the width / diameter of the largest chamber along the pipes.In instances where the street ROW is limited, the DCS chambers shall be allowed to encroach on the corridor of the adjacent utilit provided the pipe / cable corridor width of the adjacent utilit is maintained. Similartootherutilities,chambers/appurtenances ofadjacentutilitiesshallbeallowedtoencroachon theDCScorridorprovidedtherequiredpipecorridor width is maintained. In some contexts, DCS is not considered because it has been established through current practice that it is not feasible.TheDCScorridorwithinthediferentstreetfamilies shall be as presented in Table4.17.Table4.15: District Cooling Pipe Corridor RequirementsPipe Diameter Pipe Corridor Width (mm)up to 10 (up to 250mm) 150012 to 18 (300mm to 450mm) 200020 to 30 (500mm to 750mm) 2600Table4.16: District Cooling Chamber Corridor RequirementsPipe Diameter Optimized Corridor Width (mm)up to 10 (up to 250mm) 230012 to 18 (300mm to 450mm) 310020 to 30 (500mm to 750mm) 4100Table4.17: District Cooling System Corridor AllocationStreet FamilyPipe Corridor Width (m)Chamber Corridor Width (m)Access lane1.502.30 StreetAvenue 2.003.10 Boulevard 2.604.10 Chapter 4-18Abu Dhabi Utilit Corridor Design Manual (UCDM)Chapter 4 - Utilit Corridor Design4.2.5.5Location of the DCS CorridorDuetospacelimitationswithinstreetROW,DCS corridors shall be placed under the carriageway.Thisutilit,ifrequired,shallbeinstalledduringthe early stages of construction of infrastructure works.Thefrequencyofmaintainingthepipesand/or carrying connections on installed pipes for the DCS is less than that required for other utilities. Taking these two factors into consideration, installing DCS pipes under the carriageway is unlikely to result in frequent road closures for service provision and / or repair or maintenance of the installations.Chapter 4-19Abu Dhabi Utilit Corridor Design Manual (UCDM)Chapter 4 - Utilit Corridor Design4.2.6Power Supply CorridorThepowersupplycomprisesHV,MV,LVandstreet lighting.The following subsections dene the corridor width and location for each of these installations.4.2.6.1High Voltage CorridorsAll HV trenches, joint pits and corridors shall conform to, and be in accordance with, TRANSCO requirements andtpicaldetails.One2.0mHVcorridorshallbe providedonallAvenuesandtwo2.0mHVcorridors shall be provided on all boulevards. Themaximumexternalchamberwidthsallowedfor shallbe2.0m.Thecorridorsshallbelocatedunder the median and shall be kept clear from any tree roots.Theallowedcorridorwidthshallaccommodatethe HV cables, joint pit, link box including joint and route markers.Whenever more than one primary substation is required withinadevelopment,thedesignershalllocatethese substations on diferent boulevards. The HV corridors shall be used for ADDC / AADC 33kV in instances where the TRANSCO 132kV HV lines corridors are not used.TRANSCOcablesaregenerallyinstalledwitha minimum cover of 1.0m.4.2.6.2Medium and Low Voltage CorridorsAccordingtothecurrentpracticeofADDC/AADC, ber optic cables (FOC) are installed alongside the MV cables.All MV trenches, FOC manholes and corridors shallbeinstalledwithinthesameallocatedcorridor. The FOC shall be laid through separate PVC conduit(s) at the same depth as and adjacent to the power cables, and in the same trench.All LV trenches and corridors shall conform to ADWEA /ADDC / AADC requirements and tpical details. Inordertoallowformoreexibilitininstallation, combinedcorridorsshallbeallocatedforbothMV andLVcables(labeledasADDC/AADCPower).The number of cables, and consequently trench / corridor widthforbothMVandLV,variesbetweenlanduse contexts and street tpes depending on the electrical loadsandthenumberofstoreysperbuilding.The spacingbetweenMVcables(22Kvand11Kv)shallbe 400mm.Whenevernecessary,thespacingcanbe reduced to 300mm, subject to ADDC / AADC approval. Similarly LV cables shall be installed with a spacing of 300mmandthespacingcanbereducedto200mm whenevernecessary,alsosubjecttoADDC/AADC approval.Table 4.18 provides the corridor width for LV/MV, for guidance only. All LV/MV trenches shall be located under sidewalks and / or block paved surfaces. LV/MVcablesaregenerallyinstalledatdepths varyingbetween0.55mand0.75mrespectively,as shown on the tpical sections included in Annex A.Table4.18: ADDC/AADC Power Corridor AllocationStreet Family Width of Power (ADDC/AADC) Corridor (m) Access lane 2.0Street 3.0Avenue 4.0Boulevard 6.0The specied ADDC/AADC Corridor widths are the sum of corridors allocated within the Right-of-Way of any street family.The allocation on the lef and right side of the streets varies with land use context and street tpe, as shown on the tpical section in Annex A.Chapter 4-20Abu Dhabi Utilit Corridor Design Manual (UCDM)Chapter 4 - Utilit Corridor Design4.2.6.3Special ArrangementsThedesignershallensurethatsubstationswithin residential developments shall be strategically located inthemiddleoftheblockofbuildings/villaswithin a street / access lane, to the extent possible, so as to distribute the load in two directions and thus optimize availabilit of adjacent corridors for LV cables.Primarysubstationsshallbestrategicallylocatedon boulevards with a service access and / or mushtarak to the rear. Duct banks may also be used to distribute the load from a primary substation over a maximum distance of 100m to reach the rst junction on boulevards.Whenever grid stations are to be constructed within a development,thedesignershallprovideadedicated corridorfortheHVlinesconnectinggridstationsin accordance with ADWEA / TRANSCO requirements. 4.2.6.4 Location of the ADDC / AADC (MV / LV)CorridorMV / LV corridors shall be located under the sidewalk, parking lane or frontage lane as shown on the tpical sections included in this Manual.The parking lane and frontagelaneshallbeblockpavedsoastofacilitate newconnectionandmaintenanceoperations.The allocated corridor width for MV / LV corridors shall be maintained and no encroachment by other utilities is allowed into this corridor.4.2.6.5Street Lighting CorridorsStreet lighting (SL) cables / trenches shall be installed inaccordancewithADDC/AADCrequirementsand shallfollowthesamecongurationrequiredforLV cables. Street lighting poles shall be in accordance with ADDC /AADCstandards.Thestreetlightingcorridorshall besharedwiththecorridorallocatedfortrees.The powersupplytostreetlightsshallbeprovidedfrom the feeder pillars located on the median and fed from theLVcablesinstalledunderthesidewalk.TheSL cable arrangement shall be in accordance with ADDC / AADC requirements. At the tree pit, the cables shall beinstalledinconduitsandarrangedatthecorridor edge as shown in the tpical arrangement detail given in Figure 4.1. The SL corridor width shall be 1.0m depending on space limitations.Streetlightingcorridorsshallbeprovided ononeorbothsidesoftheroadandonthemedian, dependingonroadwidthandstreetlightingdesign. Table4.19summarizesthestreetlightingcorridor requirements depending on the diferent street tpes. Table4.19: Street Lighting Corridor AllocationStreet FamilyStreet Lighting Corridor (m) Side 1 Median Side 2Access lane 1.0 (0.7) N/A -Street 1.0 (0.7) N/A 1.0(0.0)Avenue 1.0(0.0) 1.0 1.0 (0.0)Boulevard 1.0 (0.7) 1.0 1.0 (0.7)(x) Indicates the absolute minimum corridor width.0.5 mm1.0 mFigure 4.1: Typical Arrangement of SL conduits in Tree PitChapter 4-21Abu Dhabi Utilit Corridor Design Manual (UCDM)Chapter 4 - Utilit Corridor Design4.2.7Telecommunications Outside Plant(OSP)Currentlytherearetwoutilitprovidersfor telecommunicationsintheEmirateofAbuDhabi. ThisManualprovides therequirementsforthe telecommunication corridor whichshallbeshared byalltelecomproviders currentlyoperatinginAbu Dhabi and by other telecom providersthatmayoperate intheEmirateinthefuture.Allcivilworksrelated totheinstallationoftelecommunicationsystems, suchasduct-banks,hand-holes,manholesetc. which are to be installed within the proposed shared telecommunicationcorridors,shallbeexecutedby themaincontractorresponsiblefortheroadworks along with the road construction.Thetelecommunicationcorridorisgovernedbythe ductandappurtenancesrequirements.Theduct corridor requirements are determined by the number oftelecomductstobeinstalledandthechamber/manholecorridorwidthisdeterminedbytheouter dimensions of telecom manholes and hand holes.4.2.7.1Telecommunications Duct CorridorWidth RequirementsThe duct corridor width is governed by the number of ducts to be installed and the spacing between ducts.Thehorizontalandverticaldistancebetween consecutiveductsinstalledwithinthesametrench shall be 150mm center to center, leaving 50mm of free space between ducts to allow for spacers and concrete lling.Thedistancebetweenductsandthetrench wall shall not be less than 100mm.The preferred duct corridorwidthrequirementsfortelecomcablesare indicated in Table4.20.4.2.7.2Telecommunications Manhole CorridorWidth RequirementsAsstatedpreviously,themanholecorridorwidthis determined by the outer dimensions of the manholes used.Basedonthecurrentlyusedmanholesizesof bothutilitproviders,themaximumouterwidth ofmanholesis2.0m.Manholecorridorwidth requirements for telecom cables shall be as indicated in Table 4.21. Similar to other utilities, if allocated space isnotsufcientfortheinstallationofthetelecom manhole,thedesignerisallowedtousetheshared corridor.Inthisinstancethemanholeisallowed toencroachonthecorridorofadjacentutilities providedtheminimumpipe/cablecorridorwidth oftheadjacentutilitismaintained.Similarly,other utilit appurtenances are allowed to encroach on the telecomcorridorprovidedtheencroachmentdoes notextendintotheminimumtelecomductcorridor. The minimum cover requirements in accordance with thecurrentpracticeoftheserviceprovidersvaries between 0.6m up to 1.3m.Table4.20: Preferred Telecom Duct Corridor RequirementsStreet Family Duct Corridor Width (mm)Access lane 800Street 800Avenue 800Boulevard 1200Table4.21: Telecom Corridor AllocationStreet FamilySide 1 Side 2Duct Width (m)Manhole Corridor Width (m)Duct Width (m)Manhole Corridor Width (m)Access lane 0.8 (0.5) 1.5 (1.2) 0.8 (0.0) 1.5 (0.0)Street 0.8 1.5 0.8(0.0) 1.5(0.0)Avenue 0.8 1.5 0.8 1.5Boulevard 1.2(0.8) 2.0 (1.5) 1.2 (0.8) 2.0(1.5)(x) Indicates the absolute minimum duct and manhole corridor width.Chapter 4-22Abu Dhabi Utilit Corridor Design Manual (UCDM)Chapter 4 - Utilit Corridor Design4.2.7.3Location of the TelecommunicationCorridorCommontelecommunicationcorridorsshallbe providedforallutilitprovidersandshallbelocated undertheparkinglane,frontagelane,ortravellane asshownonthetpicalutilitdispositionsections provided in this Manual (Annex A).4.2.8Fiber Optics CorridorsThe Fiber Optic lines considered in this section of the Manual pertain to the following utilities:MunicipalitiesADM/AAM/WRMTSS(Trafc ServicesSection)fortheTrafcControlSystem (TCS);DepartmentofTransport(DoT)fortheIntelligent Trafc System (ITS);Abu Dhabi Police (ADP);Signal Corps (SC); andNationalEmergencyAndCrisisManagement Authorit (NECMA) for the Falcon Eye system (FE). ForthepurposesofthisManual,beropticlinesare grouped in two main categories, as follows:High securit ber optic lines, which include Signal Corps lines, Falcon Eye lines, and secure Abu Dhabi Police lines.Regular ber optic lines, which include ADM Trafc ServicesSectionslines,DoTIntelligentTrafc Systemlines,andAbuDhabiPolicetrafcrelated communication lines.HighSecuritberopticlinesandregularber opticlinesshallbeinstalledinseparatededicated corridorsdesignatedasHSandFOonallmajor streets, namely Avenues and boulevards. In instances wheretheROWoftheAvenueand/orboulevardis limited,wherebytwoindependentcorridorscannot beaccommodated,thehighsecuritandregular beropticlinesshallbecombinedinonecorridor, designatedasFO.Accordingly,theFOcorridoris designed to accommodate both regular ber optic and high securit ber optic lines at all times.Where an FOand / or HS corridor is required on a street or access lane, in particular where a police station or a civil defence facilit is constructed/planned, the streetROWshallbeincreasedtoaccommodatethe FOand/orHScorridor.Thedesignershallapproach NECMA,SignalCorpsandADPoliceduringthe earlystagesofmasterplanningtoincorporatetheir requirements within the smaller streets.Agencies that share HS CorridorNECMA for FEAbu Dhabi Police- ADPSignal CorpsAgencies that share FO CorridorAbu Dhabi Police-ADPDoT for ITSADM / AAM / WRM-TSS for TCSSignal CorpsNECMA for FE4.2.8.1FO / HS Duct Corridor WidthRequirementsThe duct corridor width of the installations is governed bythenumberandsizeofductstobeinstalled,the spacing between ducts and concrete encasement.In order to accommodate the various utilities sharing thecorridorandtheirrequirements,theFOduct corridordimensionshallbebasedontheformation comprising 50mm and 100mm diameter conduits. The minimumspacingbetweenconduitsismaintainedat 50mm for spacers and concrete lling and the distance between the ducts and concrete wall shall not be less than 50mm. The arrangements therefore yield a total width of 700mm. TheHSductbankshallhaveasimilararrangement yielding a total duct corridor width of 500mm.Wherever HS corridor is not provided}Chapter 4-23Abu Dhabi Utilit Corridor Design Manual (UCDM)Chapter 4 - Utilit Corridor DesignFigure4.2illustratestpicalarrangementsforFiber Optics(FO)andHighSecurit(HS)ductbanks. Manholedetails/arrangementsfortheFOandHS corridors for the various tpes are illustrated in Figure 4.3 and Figure 4.4.Theminimumcoverrequirementsvarybetween 0.65m for branches and 0.8m for the main lines. 4.2.8.2FO / HS Corridor Width RequirementsAs stated previously, the corridor width is determined bytheouterdimensionofmanholes/handholes. Based on the currently installed manhole / hand hole forFOandHSsystems,themaximumouterwidth ofthehandholeis1.2mand1.0m,respectively. Consequently,thecorridorwidthrequirementsfor FO/HScablesshallbe1.2mand1.0m.Inorderto restrict access to the high securit lines to the relevant Authorit, and as these cables are sharing the trench /hand hole with other ber optic utilities, access shall bepermitedonlythroughdedicatedhandholesfor each utilit. Thiscouldbeachievedbyencasing/covering specic ducts with concrete in hand holes / manholes restrictingaccesstothecablesofthesespecic utilities while having the remaining cables accessible. IninstanceswherethestreetROWislimited,theFO /HShandholesshallbeallowedtoencroachonthe sharedcorridorprovidedthepipe/cablecorridor width of the adjacent utilit is maintained. Basedonthesameprinciple,chambers/ appurtenancesofadjacentutilitiesshallbeallowed toencroachontheFO/HScorridorprovidedthe required duct corridor width is maintained.Figure 4.2: Typical Arrangement for FO and HS Duct BanksAll Dimensions are in mmTypical arrangement - HS duct bank Typical arrangement - FO duct bankChapter 4-24Abu Dhabi Utilit Corridor Design Manual (UCDM)Chapter 4 - Utilit Corridor DesignFO corridor - Police & Municipalit / DoT Manhole FO corridor - Signal Corps Manhole FO corridor - FE ManholeFigure 4.3: Typical Manhole Details for FO corridorAll Dimensions are in mmChapter 4-25Abu Dhabi Utilit Corridor Design Manual (UCDM)Chapter 4 - Utilit Corridor DesignHS corridor - AD Police Manhole HS corridor - Signal Corps Manhole HS corridor - FE ManholeFigure 4.4: Typical Manhole Details for HS corridorAll Dimensions are in mmChapter 4-26Abu Dhabi Utilit Corridor Design Manual (UCDM)Chapter 4 - Utilit Corridor Design4.2.8.3Special Arrangements for FO SystemSecuritcamerapolesfortheFalconEyesystem, whererequired,shallbelocatedalongthecorridor dedicatedforstreetlighting/trees.Thelocations ofthepolesshallbegivenpriorit/precedence overtreesandlightingpolesandcoordinatedwith NECMA. When placed within the street lighting / trees corridor,aminimumoftwopass-thruconduitsshall beprovidedwithinthemanholeandpilefoundation of the pole of the FE system to secure passage for the street lighting cables.Chapter 4-27Abu Dhabi Utilit Corridor Design Manual (UCDM)Chapter 4 - Utilit Corridor Design4.2.9Gas SupplyGaspipesandvalvechambers,aswellasallrelated gas supply network elements, shall be in accordance withADNOCDistributiongeneralrequirementsand standard details.Forsafetreasons,gaspipelinecorridorsshallbe placed at minimum proximit from plot boundaries:MinimumproximitdistancefrombuildingstoPE gas mains is 5.0m for pipe diameters of up to 315mm (MOP 4 barg);MinimumproximitdistancefrombuildingstoPE gasmainsis8.0mforpipediametersofmorethan 315mm (MOP 4 barg);Minimum proximit distance from buildings to steel gas mains of MOP 16 barg is 13.0m;Minimumclearancebetweengasmainsandlow voltage electrical cables is 400mm in any direction; andAminimumcleardistanceof2.0mshallbe maintained between gas pipeline corridors and any electrical/powercables(MV/HV),otherthanlow voltage electrical cables.Forgassystemcorridorandspaceallocation,the following shall be considered:Thedesignershouldaddacorridorforanygas steelpipescrossingthedevelopmentinaddition to the corridors allocated for the HDPE distribution network.Insuchinstances,themodiedutilit arrangement drawings shall be submited to the UPC for approval;Thedesignershouldallocatespace/plotareafor thegaspressurereducingstationchamberatthe connectionpointbetweenthedevelopments distribution network and the high pressure gas pipe; these stations shall be located according to ADNOC Distribution general requirements; andTo facilitate house connection crossings with other utilities,ductsshallbeinstalledtoallowforgas pipecrossingsduringtheinstallationofgaspipes. ReferenceshallbemadetoADNOCDistribution Design Basis, standards and specications. Thegascorridorrequirementsvarybasedonstreet families as given in Table4.22.Table4.22: Gas Supply Corridors AllocationStreet Family Corridor Width (m)Access lane 1.0Street 1.0Avenue 1.5Boulevard 1.5Chapter 4-28Abu Dhabi Utilit Corridor Design Manual (UCDM)Chapter 4 - Utilit Corridor Design4.2.10Solid Waste Collection BinsAllsolidwastecollectionbinsshallbeplacedaway from the ROW of roads.These shall be located within plot boundaries for villas and in setbacks at the back side of buildings for all other tpes, such as residential buildings,ofcebuildings,commercialcenters,etc. TheallocatedutilitcorridorsandROWofroadsdo notallowforanylay-bysforwastebinsanddonot allow for the placement of these bins on sidewalks or withinthepublicrealmoftheroads.Plannersshall providededicatedspacesforplacingthewastebins away from the street ROW.Unde