What do we do withmeasurements?

Frank Bouman

Pavement management at Rijkswaterstaat

17 October 2019

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Rijkswaterstaat

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Content

ERPUG 2019

• Rijkswaterstaat, mission

• Roads, the network

• Measurements

• Pavement Management System

• Programming

• Execution

Rijkswaterstaat

ERPUG 20193

Rijkswaterstaat’s area of management

Rijkswaterstaat is in charge of three national infrastructure networks

Rijkswaterstaat

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Rijkswaterstaat Main Highways Network

Rijkswaterstaat’s mission to perform traffic management

• to have an active and nationwide control of traffic flows

• a national coordination of road constructions

• to provide actual and reliable traffic data

• to develop innovative and practical traffic systems(pilots with the market and other public highways authorities)

ERPUG 2019

Rijkswaterstaat

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The network, quantities

ERPUG 2019

• Pavements: 3.100 kms motorway

– 6.200 km one direction / 15.000 km lanes

– 1.260 km sliproads

– approx 110km rush hour lanes

• Structures: 6.000 (also on mainwaterways)

– 2.843 viaducts on highways

– 767 moveable and fixed bridges on highways

– 24 tunnels

– 33 ecoducts

• DTM (6 control centres, 108 DRIPS, 2.000 cameras)

• Area control

– winter ice, roadside and restplace management, lights, signage, guidingrails, noise barriers …

Rijkswaterstaat

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The network, pavements

ERPUG 2019

• Wearing courses– 90+% porous asphalt,

• porous 0/16, porousTW 4/8, porousTW 2/6

– 10-% AC,SMA, others

• Distresses:– 85% stone loss or ravelling/fretting

– 10% cracking

– 3% rutting and unevenness

– 2% skid resistance

• Financing– ± 200 M€ yearly (SLA RWS-Ministry)

Rijkswaterstaat

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Measurement techniques (annual monitoring)

ERPUG 2019

• LCMS

• Ravelling (RWS model PA)

• Cracking (Pavemetrics model + RWS)

• Evenness (RWS model)

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Measurement techniques 2

Skid resistance - SWF

ERPUG 2019

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Intervention levels (100m1 lane)

• Ravelling : >25% (medium (11-20%) or severe (>20%)stone loss)

• Cracking : >30% (cracking 10-20mm width)

• Rutting : >=18mm

• Longitudinal unevenness : >=IRI 3,5

• Skid resistance : <0,51 (at 80km/h)

ERPUG 2019

Rijkswaterstaat

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Maintenance prediction

ERPUG 2019

• One safety level for all

but uniform norms have different outcomes– less traffic and load - longer service life time

– more traffic and load - shorter service life time

• Maintenance condition dependent

based on yearly measurements and inspections– too early results in capital loss

– too late is unsafe and more expensive

• Noise reducing surface layers combined with

carriageway wide maintenance

Rijkswaterstaat

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PMS – IVON2

ERPUG 2019

• Network level

• Five types of distress• Average service life (11/17 , 9/13)• Traffic load• Climate• Soil

• Maintenance strategy• Min/max length projects• Optimisation rules• Last year’s outcome

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PMS – IVON2

ERPUG 2019

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PMS - results

ERPUG 2019

• 10 years ahead expected maintenance• 5 + 5 (measurements + key figures)

• Lanes and carriageways• Projects (road,lane,from, to)• Indicative measures

• Replace 5cm, 2,5cm• Open Emulsion Sand Asphalt mixture • Rejuvenate

• Budgets

• Several levels of detail (district, regional, national)

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PMS - results

ERPUG 2019

Maps• Short term 1-2 yrs• Mid term 3-5 yrs• Long term 5-10 yrs

Total measures/year-n: ~1.300 locations-length: 0,1 – 7 km-€: approx 200 M€

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Programming and procurement

• Programming

– Combinations of works on pavement, structures, DTM

– Taking into account:

• our neighbours (municipalities, provinces;

• events (Floriade, festivals, etc.).

• Procurement

ERPUG 2019

Rijkswaterstaat

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Thank you

ERPUG 2019