Road Safety

1

Office of the Engineer-in-Chief (R&B), Errum Manzil, A.P., Hyderabad.

Circular Memo No.2/DCE (R)/ EE(RS&PMS)/ DEE1/ AEE1 Dated: 11.07.2005.

Sub:- R&B Dept. - Road Safety Interventions - Certain guide lines issued -

Recommendations of the committee on proposed road safety interventions - Regarding

Ref :- 1. G. O. Ms. No. 80 of T,R&B (R.I) Dept. dt.25-4-2005

2. T. O. Memo No. 2/ DCE(R)/ EE(RS&PMS)/ DEE I/ AEE I Dt:18-05-2005.

***

The Government vide reference 1st cited, have issued certain guide lines on road

safety along with certain road safety interventions to be taken up.

In this regard, a committee of 10 Senior Engineers, Traffic Experts, Professors

was constituted for finalization of detailed specifications, drawings, to be adopted for the

proposed road safety interventions. The Committee has met in series of meetings and

submitted very valuable recommendations.

In this regard the following guidelines have been issued based on Committee’s

recommendations. All the Superintending Engineers are requested to adopt the

guidelines in taking up of Road Safety Interventions mentioned vide reference 1st cited.

1.Cement Concrete dividers:

Central road dividers of cement concrete (CC M15 grade) are to be provided on

roads to avoid head on collusion.

• The central median/divider shall be provided in stretches where clear carriageway of

14m & above is available. And in urban limits, dividers shall be provided where clear

carriageway available is 11m & above.

• The height recommended is 0.40m in stead of 0.75m for urban roads (with bottom

width of 0.45m & top width of 0.25m) and for rural roads the height recommended is

0.30m (with bottom width of 0.33m & top width of 0.23m), as shown in the drawings

attached.

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• In urban limits, all the roads must be widened to 14M and put dividers on priority to

avoid head on collusion accidents.

• Uninterrupted CC Median/Divider of not less than 750M shall be laid to avoid too

many openings so that traffic is properly regulated. Only under exceptional cases, the

length may be reduced as per site conditions.

• For islands, central divider shall be half of the section recommended above.

• The specifications and detailed drawings are enclosed in Annexure-I.

2. Hazard markers and delineators:

The Hazard markers and delineators are to be provided on roads to avoid

crashing of objects close to the road.

• Hazard markers shall be provided near narrow culverts, bridges, places where

carriageway is restricted due to lack of sufficient land width for ROW (Right of way),

tips of island at road junctions, median gaps, islands etc.,

• LDS ( Linear delineator system ) over bridge railing, delineator at horizontal curves

with radii less than 250m as per IRC 35-1970 (Code of practice for road markings) ,

IRC 79-1981 & MOST Spec.No.805. In Ghat roads with Linear Delineation System

shall be provided.

• Guard stones with florescent painting shall be provided @ 3m interval in all high

embankment ( where embankment height is greater than 3m).

• Guard rails to be provided near bridges where the bridge width is less than the

formation width.

• The specifications and drawings of hazard markers and delineators are enclosed in

Annexure-II.

3. Speed breakers:

Only rumble strips shall be provided for controlling speed and to promote orderly

traffic movement with improved safety.

• To be provided at junctions (on lower category roads/ roads with less traffic),

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unmanned Railway Level Crossings, toll gates, black spots (where repeated accidents

takes place)and congested areas like shandy/ market / residential places etc.

• Rumble strips is the placement of intermittent raised bituminous overlays across

roadway. Raised sections shall be 25mm high, 300 mm wide, and placed about one

metre centre to centre. A series of such strips 7 nos. are to be provided at one

location. Rumble strip markings shall be painted with ISI brand enamel paint regularly

in the form of a pattern as per drawing enclosed. These markings shall be

supplemented with the cautionary sign (CS).

• The specifications and detailed drawing is enclosed in Annexure-III.

4. Studs (Raised Pavement Markers) :

Studs shall be provided to demarcate the lanes for appropriate movement of vehicles.

Studs with shanks should be provided at following locations @ 7.5 m interval.

• In horizontal curves ( radius less than 250 m)in rural areas along centre line, along

center line on bridges having a L.W.W. (linear waterway) of more than 30m and shall

be continued upto 30 m of approaches on either side of the bridge.

• Along centre line in urban areas and accident prone areas where road width is 7 m

or more.

• Studs should be provided at the major junctions i.e., rural / urban areas on top of

kerbs near traffic Islands in one row.

The specifications for studs will be finalised later by the committee and

communicated in due course.

Specifications and drawings enclosed as Annexure-IV.

5. Center line marking with Thermoplastic material:

Centre line marking is provided to demarcate the lanes to regulate traffic and prevent

head on collisions.

• Center line marking shall be adopted on roads having 6.7m wide carriageway and

above. The size shall be with 3.0m strip & 4.50m gap and width 10 cm and thickness

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2.5mm of thermoplastic reflective paint of BIS standards (Specifications and drawing

enclosed as Annexure-V

• Continuous centerline margins on curves, bridges and approaches with thermoplastic

reflective paint should be done.

• The edge line markings of 10cm.width shall be provided continuously wherever paved

shoulders are existing in case of 10m carriageway and above.

• On curves outer edge line markings shall be provided with white colour for roads

having a traffic intensity of more than 5000 PCUs and radius up to 250m.

• Chevron markings shall be painted on hazardous locations near tips of divider as per

drawing enclosed - Annexure VI.

Junctions and intersections shall also be marked as per IRC standards & as per

IRC 35-1997 and IS 164 - 1981 (1st revision reaffirmed in 1986) & MOST Specn.No. 803.

6. Zebra markings and pedestrian crossings with Thermoplastic material:

• Zebra markings near speed breakers and pedestrian crossings shall be provided for

cautioning drivers and safe passage of the pedestrians.

• The Zebra crossings are to be painted as per IRC specifications with thermoplastic

material near school zones, intersections, pedestrian crossings, etc.

• Specifications and Drawings enclosed as Annexure - VII.

7. Carrigeway of bridges and sidewalks and footpaths:

• All two lane bridges on MDRs and SHs, new as well as those bridges proposed for

reconstruction having a linear waterway upto 60m shall have minimum 12m

carriageway width clear lane marking for shoulders on both sides for slow moving

traffic and pedestrians with continuous centerline marking.

• The approaches to the above bridges on either side shall have minimum formation

width of 12m and carriageway width of 7m.

• All bridges, either inside the habitation or within 0.5 km of village / town should have

footpath / sidewalks of minimum clear width of 1.5m. Ducts shall be provided below

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the footpaths.

• On all roads in Municipal limits, side walls / foot path with minimum 1.5 m clear width

should be provided

• Where ever CC / Masonry drains are existing, RCC foot paths should be constructed

over drain.

• Instead of handrails, solid concrete New Jersey crash barriers for all bridges shall be

provided for better safety.

8. Retroreflective sign Boards /Caution / Warning / Informatory boards):

Retro-reflective Sign boards are to be provided using Type III high intensity grade

sheeting shall be used for the following.

The above roads shall be provided with 4 MM thick Fiber glass Reinforce Plastic

(FRP) board with 75 x 75 x 6 mm thick MS angle post.

The lettering/marking should be screen printed on cautionary signs as per IRC -

67, MOST Specn.Nos.801.1.1 & 801.2.5

These retro-reflective signboards shall be erected at the following locations :

(a) Cautionary/ Warning signs : These signs are used to caution the road users of

the existence of certain hazardous conditions either on or adjacent to the road

way.

These boards are to be kept at following:

• at all curves upto 250 m radius,

• School zones, pedestrian crossings, junctions, ghat road starting point.

• Speed breakers, gap in median, unmanned railway level crossings, dangerous

dips, diversion roads, narrow bridges etc. wherever required.

• Submersible causeways, road dams.

(b) Mandatory / Regulatory signs: These signs are used to inform road users of

certain rules and regulations to improve safety and free flow of traffic, such as

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• indicating speed limits

• no over takings,

• one way, no parking etc.

• axle load limit

(c) Informatory Signs: These signs are used to provide information and to guide

road users along roads. The Informatory signs are to be provided

• Entrance of village / Town / City junctions, Intersections

• Route direction indicators ( the board shall be with blue background and white

letters).

• Ghat Roads,

Specifications and Drawings enclosed as Annexure - VIII.

9. Junction / Village nameboards / pedestals:

• In addition to mild steel junction boards, brick masonry pedestals giving information to

be erected near bypass junctions / intersections.

10 (a). Rehabilitation of bridges , culverts & CD works:

• Slab when steel reinforcement is exposed and damaged parapets body wall of

abutment should be repaired.

• The field officers shall enclose the photographs along with proposals and estimates

for rehabilitation of bridges , culverts & CD works. They should take photographs after

attending the rehabilitation / repair work.

• The proposed centralized equipment like mobile bridge inspection unit , core cutting

machine, etc. necessary for inspecting the bridges for their rehabilitation will be made

available to the Executive Engineers and kept under the control of Roads Division,

Hyderabad. Each circle shall be allotted specific period to use bridge inspection

vehicle. The Executive Engineers (R&B) have to report the no. of inspections done

etc. for rehabilitation using the centralized equipment.

• The de-silting of canals / drains near R&B bridges shall be undertaken by the

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Irrigation authorities only by obtaining prior concurrence from concerned Executive

Engineers of R&B dept. While giving concurrence, the Executive Engineer (R&B) shall

see that the designed sill level is not disturbed. Government may be addressed to

issue the relevant G.O. in concurrence with Irrigation department for this purpose.

10 (b). Narrow culverts & Narrow Bridges:

• Wherever roads are developed into 2 lane and more, the culverts / CD works / slab

bridges should be widened on priority to reduce accidents.

11. Retaining walls / Parapet walls , rails:

• Ghat roads curved portions are shall be provided with Linear Delineation System.

• All Ghat sections and in other hazardous locations in suitable places, retaiing wall /

parapet / railing should be constructed.

12. Curve improvements:

• All curves shall be designed, constructed and maintained as per IRC guidelines

(curves for a speed of minimum 80km/hr to be designed). Wherever design speed is

restricted, sharp curve mandatory sign board and speed limit boards shall be

provided.

• Under curve improvements, extra widths shall be designed as per IRC guidelines.

Extra widths to be provided on hilly roads as per design requirements.

• On single lane roads curves shall have carriageway width of 5.5m. Total carriageway

should be paved.

• Studs shall be provided on centerline of all curves.

• Centerline marking shall be in yellow colour.

• No overtaking sign boards and desired speed limit boards shall be provided near all

curves.

• Minimum sight distance of 200m shall be ensured for visibility by land acquisition,

demolition, clearing site etc. if necessary.

• In plain terrain, the gradient shall be easened preferably to 1 in 33 wherever it is

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steeper than 1 in 20.

• In steep gradient locations, steep gradient board, no overtaking board, speed limit

board shall be erected.

13.Junction improvements:

• All intersections, junctions should have a minimum safe stopping sight distance of 130

m.

• All junctions in urban limits shall be illuminated by providing proper lighting after

obtaining undertaking for maintenance of lighting system.

14. Crash barriers:

• Crash barriers are provided to avoid vehicles fall into valley / rivers / streams in case

of crash.

• Crash barriers shall be provided on all high embankments ( where embankment

height is more than 3m ) of roads having traffic volume more than 5000 PCUs. For

other roads, Guard Posts shall be provided.

• Metal beam single ‘W’ crash barrier of size 311 x 83 mm flange width made with

structural steel corrugated plate 3mm thick and having a length of 4.5m over a

channel post of 150 x 75 x 5 mm with a spacer of channel section 150 x 75 x 5 mm,

300 mm long to be provided.

• Crash barriers may be provided irrespective of traffic PCUs at locations with proven

history of accidents.

• Guard rails to be provided near bridges on approaches.

15. Shoulders / berms and formation width:

• Minimum formation width shall not be less than 7.5m as per existing standards.

• In all single lane roads minimum shoulder width of 1m with granular base should be

provided.

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16. Low berms and scours:

• all low berms and rain water gullies in the formation width shall be immediately

attended and filled up from time to time.

Further, the Superintending Engineers are requested to attend the following:

1. In general,

All estimates except O. R. works shall have a sub-estimate enclosed covering

road safety interventions. Each and every S. R. estimate or other road estimates

including estimates prepared for special and plan projects shall include these items

invariably. No technical sanction shall be accorded without this sub-estimate on road

safety. If all items are already covered as per Annexure-I a NIL certificate should be

recorded along with estimate while according technical sanction. In other stretches where

works are not taken up, exclusive estimate to cover road safety interventions should be

prepared at sub-division level as on package and should be taken up on priority. If

technical sanction authority accords any technical sanction without the sub-estimate he /

she shall be held responsible for lapses.

2. Detailed survey in the District shall be conducted for accident prone areas and all

roads having more than 5000 PCUs in the first phase for identifying the above

mentioned Road Safety Interventions to be taken up before preparation of estimate.

3. The estimates for Road Safety Intervention items shall be submitted by the

Superintending Engineers to Chief Engineer, R&B, Roads.

4. Priority shall be given for important prioritized items of the Road Safety Interventions

since budget is a constraint. And also depending up on funds available, high traffic

road shall be given priority.

5. Road Safety Interventions may be categorized into 5 types i.e., (1) civil items,

(2)signages, (3) road markings, (4) studs and (5) Metal crash barriers. All

Superintending Engineers are requested to prepare estimates in each district as 4

packages for 4 categories. The category wise works are shown as following:

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4 CATEGORIES OF ROAD SAFETY INTERVENTIONS

Category – I (Civil works)

Category- II (Signages)

Category – III (Road Markings)

Category – IV (Raised pavement

marker) (Studs)

Category – V

( Metal Crash

barriers)

1. Cement Concrete Dividers

1. Hazard markers and delineators

1. Centerline markings

1. Raised pavement marker (Studs)

1.Metal crash barriers

2. Speed breakers 2. Warning / Caution boards

2. Zebra markings near speed breakers and pedestrian crossings, intersections

3. Side works / Footpaths

3. Junction/ Village name boards

4. Rehabilitation of bridges, slab culverts, CD works

5. Retaining walls / parapet walls, railings

6. Curve improvements

7. Junction improvements

8. Shoulders / Berms

9. Formation width

10. Low berms

11. Scours 12. Junction/Village

board pedestals

• On all signage boards the name of ‘Police’ in addition to ‘R&B’ should be written /

painted so that thefts are minimized.

• All above points should be read as minimum standards keeping road safety point of

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view. Other wise general IRC / MoRT&H standards should be mentioned for

construction of roads and bridges.

The Superintending Engineers are informed that the rates for non SSR items will be

circulated separately for estimate purpose. Meanwhile detailed estimates may be

prepared and kept ready.

All the Superintending Engineers(R&B) are requested to take up the detailed physical

survey of all the roads in district in respect of the above road safety interventions and

detailed estimates should be submitted urgently. Depending upon the financial constraint

Superintending Engineers(R&B) are requested to prepare estimates in phased manner

taking top traffic corridors on priority. All 4 packages should be taken up simultaneously.

The survey format is enclosed as Annexure-IX for the purpose of assessing the

requirements and preparation of estimate.

Further, all Superintending Engineers (R&B) are requested

• To remove all unauthorized speed breakers on roads

• To identify Government land for construction of wayside rest houses and parking bays

to provide rest places for drivers. The Government is interested to take up the parking

bays / Rest houses for drivers on BMOT ( Build Maintain Operate and Transfer)

• To provide suitable signage’s with Telephone nos. of nearest police stations and

nearest hospitals / trauma centres on all roads.

• As Convener Superintending Engineers may initiate to discuss all points came up in

video conference held on 20.06.2005 ( Minutes enclosed).

• Administrative sanction shall be obtained from Chief Engineer / Government for all the

works pertaining to road safety. No road safety work shall be taken up in Ordinary

Repairs grant.

Encl: 1) Annexure I to IX 2) Minutes of Video Conference held on 20.06.2005. 3) Copy of G.O.Ms.No. 80 dt.25-4-05

sd/ Engineer – in – Chief, R&B (Admn.&Nabard)

ANNEXURE – I

Specification for Central Road

Divider:

Construction of CC M15 grade

Central Road Divider as per

approved drawing and Technical

specifications including excavation of

existing B.T.Surface / any type of

surface to the required depth and

width as specified in the drawing

including cost of formwork, all T&P,

water charges, curing, etc., complete

for finished item of work, as directed

by Engineer-in-Charge and as per

MORT&H specification nos. 202,

1500, 1700, 2100 and 2200

Codes: MORT&H specification nos.

202, 1500, 1700, 2100 and 2200

Central Road Divider:

Painting two coats using 1st quality

synthetic enamel paint over one coat

of appropriate primer of approved

brand, colour, and shade over the

concrete surface as per the approved

pattern etc., complete for finished

item of work, as directed by

Engineer-in-Charge and MORT&H

specification no.803

Codes: MORT&H specification

no.803

AND PAINT WITH WHITECC M 15

GL

450

125

125

275

100250

CONCRETE CENTRAL ROAD DEVIDER IN URBAN AREAS

Note: All dimensions are in 'mm'

(WITH A LENGTH OF 1.25 MTS EACH BLOCK)

GL

GL

CC M 15 AND PAINT WITH WHITE

23050

200

100

125

330

CONCRETE CENTRAL ROAD DEVIDER FOR RURAL AREAS

Note: All dimensions are in 'mm'

GL

ANNEXURE – II (i)

Specification for Object Markers:

Supplying and installation of object

markers 5cm dia MS medium ISI pipe

class B painted with two coats of 1st

quality synthetic enamel painted with

white, over one coat of appropriate

primer of approved brand and shade,

kept at 80cm high above ground level

with triangular panels of size 30cm

fixed at top, 3nos.circular red

reflectors of 7.5cm dia fixed standard

supports, buried in a trench of size of

30cm x 30cm and 50cm depth filled

with CC 1:2:4 / fixed in the divider

concrete directly as directed by the

Engineer-in-Charge and conforming

to IRC 79-1981 & MORT&H

specification no.805 and approved

drawings etc., complete for finished

item of work.

Codes: IRC 79-1981 & MORT&H

specification no.805

300

400-50

0

GL

75 mm diaRed reflectors

Red boader

White background

300

400-500

NOTE: ALL DIMENSIONS ARE IN MM

GL GL

Red reflectors75 mm dia

White background

GL GL GL GL

400-500

300

Painted white Painted white

Red reflectors50 mm dia

White boareder

All red reflector

White background

Red boader

400-500

ANNEXURE – II

Specification for Roadway Indicator:

Supply and installation of Precast RCC M15 grade Roadway Indicators of size

10cm x 10cm, 90 cm high above ground level, painted with two coats of black

and white in 15cm wide stripes, with first quality synthetic enamel paint over

one coat of appropriate primer of approved brand, colour, and shade over the

concrete surface fitted with 80x100mm rectangular/or 75mm dia reflectorized

(front side white and back side red) panels at the top with standard supports and

buried into the ground in a trench of size 30cm x 30cm and 50cm depth filled

with CC 1:2:4, as directed by Engineer-in-charge and conforming to IRC 79-

1981 & MORTH specn.no.805 and approved drawings etc., complete for

finished item of work.

Codes: IRC 79-1981 & MORT&H

Specn.No.805.

DELINEATOR WITHRECTANGULAR REFLECTORCIRCULAR REFLECTOR

DELINEATOR WITHDELINEATOR WITHOUTREFLECTOR

150

150

150

150

800-1000

800-1000

150

150

150

150

800-1000

150

150

150

150

RECTANGULAR WHITEREFLECTOR120X80 MM7.5 cm DIA

REFLECTORWHITE ROUND

GLGLGLGLGLGL

HAJARD MARKERS & DELINIATORS

NOTE: ALL DIMENSIONS ARE IN MM

STRIPES 150 MM WIDEPAINTED BLACK & WHITE

ANNEXURE – II (iii)

Specification for Hazard Markers:

Supplying and installation of Hazard

Markers using M.S.angle of size 55X55X6mm and 120cm high above ground level

painted with two coats of black & white stripes of 15cm wide with first quality

synthetic enamel paint over one coat of appropriate primer of approved brand, colour,

with 30cm x 90cm striped reflectorized panels fixed at top over 4mm FRP sheet with

standard supports consisting of alternately (black and yellow) stripes sloping

downward at an angle of 45° towards the side of the obstruction on which the traffic is

to pass and buried into the ground in a trench of size 50cm x 50cm and 60cm depth

filled with CC 1:2:4 as directed by Engineer-in-Charge and conforming to IRC 79-

1981 & MORT&H specification no.805 and approved drawings etc., complete for

finished item of work

.Codes: IRC 79-1981 & MORT&H specification no.805

4 mm FRP

55X55X6 MM

RD 6RIGHTLEFTRD 5

45°

300

1200

100

300

900

200

600

RED REFLECTORS100-150 MM DIA

GL GLGLGLGLGL

Black stripes

Yellow stripes

Black stripes

Yellow stripes

of the road)both on left and right side

(Same design should be used

55X55X6 MM 55X55X6 MM

STOP LINE

10 m

30 TO 100M AS PER IRC: 39-1986

CAUTIONARY SIGN

AS PER IRC 67-1997

CENTRE LINE

START OF NO. PASSINGZONE 200 M FROM THE CROSSING

RESTRICTING OVERTAKING

BY TRAFFIC TOWARDS THE TRAFFIC

RUMBLE STRIPSAS PER IRC: 39-1986

GATE

STOP LINE

2 M FOR LIFTING BARRIERS OR

1 M PLUS WIDTH OF GATE FORSINGLE SWINGING TYPE GATE OR1 M PLUS HALF WIDTH OF GATE

FOR DOUBLE SWINGING TYPE GATE

NOTE: SIMILAR MARKING TO BE PROVIDED ON THE OTHER SIDE OF THE CROSSING

100 mm

ANNEXURE – III

Specification for Rumble Strips :

Construction of Rumble Strips with hot premixed bituminous material as per

approved drawing and technical specifications with raised section of 25mm high,

300mm wide, place about one metre centre to centre, with a series of 7nos strips at

one location, including marking strips in the specified location, clearing of all dust, loose

particles, applying tack coat, cost of form work, all T&P charges, compacting, rounding

the edges and finishing the surface to the required shape, etc. complete as directed by

Engineer-in-Charge, for finished item of work and as per IRC 39 – 1986 & 99

Codes : IRC 39 & 99

ANNEXURE - IV

Specification for Studs:

Providing and fixing raised pavement markers (reflective road studs)

made of Polycarbonate moulded body, HIPS (Hi-impact polystyrene), ABS &

ASA (Acrylic Strene Acrylonitrite) type etc. and reflective panels with

microprismatic lens capable of light entering the lens face and conforming to

ASTM D 4280 , ASTM D 788 , ASTM E 809 (CLI – coefficient of luminous

intensity), & BS 873 part 4 : 1973 and complying to guidelines issued by

MORTH circular no. RW/NH/33023/10-97- DO III dt.11-6-1997. The height,

width and length shall not exceed 20mm, 130mm and 105mm and with

minimum reflective area of 13 sqcm.on each side and the slope to the base

shall be 35° +/- 5°. Fixing will be without nails but by using twin polymer shanks

using bituminous adhesive on bituminous roads or without polymer shanks with

epoxy resin based adhesive on CC roads as per manufacturer’s

recommendation including site clearance etc. and complete as directed by the

Engineer in charge.

Standards: ASTM D 4280 , ASTM D 788 , ASTM E 809 (CLI – coefficient of

luminous intensity), & BS 873 part 4 : 1973

Circulars: MORTH circular no. RW/NH/33023/10-97- DO III dt.11-6-1997.

1300 MM

20MM

105 MM

Reflective Area

ANNEXURE – V

Specification for Centreline marking:

Providing centreline marking of 300cm length and 10cm width with a gap of 450cm

with thermoplastic paints conforming to IS : 164-1981 (1st revision reaffirmed in

1986) and clause 803 of MOST specifications for Road & Bridge works and also

conforming to IRC 35-1997.

Codes: IS : 164-1981 (1st revision reaffirmed in 1986)

MOST specification clause 803 IRC 35-1997

CENTRE LINE MARK ING

2-LANE ROAD

300

10 450

ALL D IMENS IONS ARE IN CM

s tuds w ith 7 .5 m e te r spacing

SPEC IF ICAT IONS FOR CENTRAL LINE MARK ING :

P rov id ing cen tre line m ark ing o f 300cm leng th and 10cm w idth w ith a gap o f 450cmw ith the rm op las tic pa in ts con form ing to IS :164 -1981 (1s t rev is ion reaffirmed in 1986)and c lause 803 of MOST spec ifica tions fo r R oad & B ride w orks and also conform ing to IRC 35-1997.C odes : IS :164-1998 (1s t rev is ion reaffirmed in 1986)

MOST spec ific a tion c lause 803 & IRC 35-1997.

W id th 10 cmTh ickness 2.5 mm

ANNEXURE – VI (i)

600

750

2100 to 5000

850

DETAILS OF DIAGONAL AND CHEVRON MARKING

850

45°

45°

150100

750

150

850 2100 TO 5000 850

30 m600

850

2100 to 5000850

600

750

150

150

100

30 M 45°

45°

30 m

Note: All dimensions are in mm

ANNEXURE – VI (ii)

45.0 m 60

.0 m

FLA

RING NOT MORE

THAN I IN

20

45.0 m

45.0 m

DOUBLE

CENTRE LINE

DIAGNOLS

MARKING ON TRANSITION FROM 2-LANE UNDIVIDED TO 4-LANE DIVIDED C

ARRIAGEWAY (NO SHIFT IN

CENTRE LINE)

Note: A

ll dim

ensions are in meters

ANNEXURE – VI (iii)

1 foot

Desirable 100 feet

Minimum 15 feet

DIVIDER

0.5 m

Min 2.5 m

0.5 m

Not more than 1.25 mNot less than 0.5 m,

Stop line

Footpath

Pedestrian Crossing at an Unsignlized Intersection

ANNEXURE - VII

Specification for Zebra Markings:

Providing Zebra pattern stripes marking for pedestrian crossing with equally

spaced white stripes 500 mm wide and 500 mm gap and length of 2 m to 4 m with

thermoplastic paints conforming to IS: 164-1981 (I st revision, reaffirmed in 1986)

and clause 803 of MOST specification for Road & Bridge works and also

conforming to IRC 103-1988 & IRC 35-1997.

Codes: IS: 164-1981 (I st revision, Reaffirmed in 1986) MOST specification Clause

803.

IRC 103-1988 & IRC 35-1997.

ANNEXURE – VIII

Specification for Cautionary/Warning

Signs:

Providing and fixing

Cautionary/Warning sign boards size 900

mm equilateral triangle made out of Retro

reflective sheeting of Type – III of ASTM

D4956-01 for full background of White

colour and letters/logos done by screen

printing in Black colour, boarders by screen

printing in Red colour as per IRC: 67-2001

and fixed over 4 mm thick FRP sheet and

painted back side with grey colour and fixed

over back support frame of MS angle

25x25x3 mm all round and mounted on a

MS angle post of size 75x75x6 mm with

clear height of not less than 2.1 m from the

ground level the bottom of the board. The

signpost should be painted with one coat of

red oxide paint and 2 coats of synthetic

enamel paint of every 30 cm with Black &

White colour. The signpost shall be firmly

fixed with MS base angle 35x35x4 mm in to

the ground by 1:2:4 Concrete foundation of

size 450x450x600 mm.

Standards:

Retro Reflective Sheeting: Type-III of ASTM

D4956 – 01.

Sign Design and fabrication: As per IRC:

67-2001.

Circulrs: Most No. RW/NH-33023/31/88-

DO-III dt: 4-11-1995.

600

35x35x4mm

GL

450

900 mm

White Retro Reflective Sheeting (Type - III)

Black sreen printing ink

Red sreen printing ink

GL

900 mm

900 mm

Front View

Rear view

35x35x4 mm MS Angle

25x25x3 mmMS Angle

MS angle75x75x6 mm

2100 m

m

Cautionary/Warnig Signs

MS base Angle

ANNEXURE – VIII

Specification for Mandatory/Regulatory

Signs:


Mandatory/Regulatory sign boards size

600MM/900 mm circle made out of Retro

reflective sheeting of Type – III of ASTM

D4956-01 for full background of White

colour and letters/logos done by screen

printing in in black colour, boarders by

screen printing in Red colour as per IRC:

67-2001 and fixed over 4 mm thick FRP

sheet and painted back side with grey

colour and fixed over back support frame of

MS angle 25x25x3 mm all round and

mounted on a MS angle post of size

75x75x6 mm with clear height of not less

than 2.1 m from the ground level the bottom

of the board. The signpost should be

painted with one coat of red oxide paint and

2 coats of synthetic enamel paint of every

30 cm with Black & White colour. The

signpost shall be firmly fixed with MS base

angle 35x35x4 mm in to the ground by 1:2:4

Concrete foundation of size 450x450x600

mm.

Standards:


D4956 – 01.


67-2001.

GL



Red sreen printing ink

GL

Fron View

Rear view

35x35x4 mm MS Angle

25x25x3 mmMS Angle

MS angle75x75x6mm

2100 m

m

MANDATORY/REGULATORY SIGNS

900 mm

12 mm hole

600

35x35x4mm

GL

450

GL

MS base Angle

ANNEXURE – VIII

Specification for Facility Informatory

Signs:


Cautionary/Warning sign boards size

600X800 mm made out of Retro reflective

sheeting of Type – III of ASTM D4956-01

for full background of Blue/White colour with

screen printing of symbols in Black colour

as per IRC: 67-2001 and fixed over 4 mm

thick FRP sheet and painted back side with

grey colour and fixed over back support

frame of MS angle 25x25x3 mm all round

and mounted on a MS angle post of size

75x75x6 mm with clear height of not less

than 2.1 m from the ground level the bottom

of the board. The signpost should be

painted with one coat of red oxide paint and

2 coats of synthetic enamel paint of every

30 cm with Black & White colour. The

signpost shall be firmly fixed with MS base

angle 35x35x4 mm in to the ground by 1:2:4

Concrete foundation of size 450x450x600

mm.

Standards:


D4956 – 01.


67-2001.

600

GL

Blue Retro Reflective Sheeting (Type - III)


GL

Fron View

Rear view

35x35x4 mm MS Angle

25x25x3 mmMS Angle

MS angle75x75x56mm

2100 m

m

FACILITY INFORMATORY SIGNS

12 mm hole


600

35x35x4mm

GL

450 mm

GL

Fron View

MS base Angle

ANNEXURE – IX

Proforma – 1

ASSESSMENT SURVEY FOR ROAD SAFETY INTERVENTIONS (RSI)

Abbreviations to be used

Cement Concrete Divider - CCD Mandatory Sings – MS (Type of sign)

Rumble Strips - RS Cautionary Signs – CS(Type of sign)

Studs - SD Informatory Signs-IS (Type of sign)

Marking - M(Specify type of marking)

Narrow Culvert - NC

STRIP

PLAN Km EXACT

CHAINAGE /

LOCATION

TYPE OF ROAD SAFETY

INTERVENTIONS

From To LEFT

SIDE

RIGHT

SIDE

ON ROAD /

ACROSS

ROAD

DETAILS OF

ROAD SAFETY

INTERVENTIONS

PROPOSED /

REMARKS

Note: The above survey should be conducted for every road, section wise.

AEE DEE EE

Example Sheet

ANNEXURE – IX

Proforma – 1

ASSESSMENT SURVEY FOR ROAD SAFETY INTERVENTIONS (RSI)

Abbreviations to be used

Cement Concrete Divider - CCD Mandatory Sings – MS (Type of sign)

Rumble Strips - RS Cautionary Signs – CS(Type of sign)

Studs - SD Informatory Signs-IS (Type of sign)

Marking - M(Specify type of marking)

Narrow Culvert - NC

STRIP

PLAN Km EXACT

CHAINAGE /

LOCATION

TYPE OF ROAD SAFETY

INTERVENTIONS

From To LEFT

SIDE

RIGHT

SIDE

ON

ROAD/

ACROSS

ROAD

DETAILS OF

ROAD SAFETY

INTERVENTIONS

PROPOSED /

REMARKS

Example:

6/0 to 7/0

6/355 (Outskirts of

Venkatapuram)

CS -- -- Left hand curve

Studs from 6/0 to 7/0

@ 7.5mt C/C DC-

MDR

6/843 -- CS -- Right hand cruve

6/900 to 6/990 CCD Divider in town

limits of Anakapally

6/995 NC Widening to be taken

up 2V of 1 mt.dia

7/0 to 8/0 7/280 MS -- -- Speed limits 40

Kmph

7/390 -- MS -- No over taking

Note: The above information filled in the format is just to understand the columns to be

filled.

AEE DEE

EE

Road Safety

Documents

Transcript of Road Safety