1

Road Asset

Management,

Maintenance and

Regulation

Land Transport Authority

Singapore

Regulatory, Licensing &

Enforcement

Management &

Maintenance

2

• Manage, maintain and

upgrade road asset

• Develop management and

maintenance regimes and

requirements for road assets

and facilities

• Continuously improve public

feedback management to

meet the needs and

expectation of road users

• Initiate and implement new

technologies and materials

• Manage, regulate, license and

enforce the use and occupation

of road assets

• Establish and implement

policies, regimes and

requirements for regulating and

licensing road assets and

facilities

3

Road Length (lane-km)

Expressways 1,107 (12%)

Arterial Roads 3,175 (34%)

Collector Roads 1,618 (17%)

Local Access Roads 3,406 (37%)

Total 9,306 lane-km

Road Structures

Tunnels 5

Flyovers/VBs 346

Vehicular U/Ps 22

POBs/Footbridges 518

Pedestrian U/Ps 52

Road Related Facilities

Streetlights 113,950 nos

Footpaths 3,700 km

Covered Linkways 44 km

Bus Shelters 4,863

Taxi Shelters 287

Inventory (2016)

• Inspection Regime

• Road Inspections

• Maintenance Inspections

• Principal Inspections

• Data collection from mechanized systems

• Analysis of data

• Planning of maintenance programme

• Execution of works

• Monitoring of performance

Road Maintenance Regime

4

• Preventive maintenance

o Periodic road condition surveys

o Pavement Management System (PMS) to facilitate the planning of road

resurfacing works

• Typical road resurfacing regime for

o Expressways - 7 to 10 years

o Major roads - 10 to 20 years

o Minor roads - 20 to 30 years

• Yearly International Roughness Index (IRI) & alternate year Skid Resistance

measurements & analysis for all expressways

Maintenance of Road Assets

5

Maintenance of Bridge Assets

6

Bridge Upgrading

Bridges built to lower design loading standards are upgraded to the current design standards

• Four Street Lighting Term Contractors

via 4 zones: North, East, West, and

Central

• Established maintenance regime in-

place to carry out regular inspection

and maintenance works

• Night patrolling regime by LTA to

further track Term Contractors’

performance on lighting availability

• Provide consultations for projects,

lamp post diversion and asset

replacement works

Maintenance of Street Lighting (SL)

Facilities

7

Regulation

• Main roles:

o Ensure road works are carried out safely

o Ensure minimum disruption to traffic

flow

o Ensure proper reinstatement on public

streets

o Regulate engineering works by utility

agencies to safeguard road structures

• Empowered by Streets Work Acts and

guided by Codes of Practice to regulate

road works and structural protection

• Inter-agency coordination of major

roadworks

8

Area of coverage expanding from the initial core central

region roads to other major arterial roads & roads with normal

day bus lanes

To proactively check for any

unauthorized works & check on the

overall performance of contractors

To enhance LTA’s regulatory presence in the management of utility road works

through regular patrolling of roads

Road Work Inspection Patrol

9

Licensing

Manage and regulate events e.g. festive decorations, mini

fairs on public streets together with other government

agencies to safeguard road facilities, ensure road users’

safety and minimize inconvenience to public

Administer revenue contracts to manage and maintain:

• Bus/taxi shelters and their advertisement spaces

• Kiosks at bus shelters & linkways

10

Enforcement

11

To regulate the proper usage of road and its facilities for the safety of road

users.

Managing Obstruction

Enforcement action against person who deposits articles causing

obstruction within public streets and five-footways

Managing Illegal Advertisements

Enforcement against person who displays illegal advertisement on road

structures and road related facilities

Multi-pronged approach with application of anti-stick paint; incorporating

deterrence into new infra design; low cost advertisement boards; stepped

up removal; collaboration with IDA and Telcos

Obstruction on ORA Obstruction by Skip Bin Illegal Advertisement

Oversized heavy vehicles carrying large & heavy cargo, and

may affect road structures due to their large dimension &

heavy weight.

Regulate and licensing movement of such vehicles for safety

and convenience of other road users and to protect road

infrastructure.

OVM Licensing Regime

• A permit is required for vehicles (including any load):

o overall width > 3 m (or > 2.6 m on controlled roads);

or

o rear overhang of load > 1.8 m or 40% of the vehicle

length (whichever is lesser); or

o overall weight > allowable limits

• In addition to a permit, Auxiliary Police Escort is required

for vehicles (including any load):

o overall width > 3.4 m; or

o overall weight ≥ 80 tonnes; or

o overall height > 4.5 m tall

Control of Oversized Vehicle Movement

12

13

Leveraging on Technology

Utilizing drones for elevated bridge

inspection

Drone inspection at Farrer Flyover

Field

equipmen

t

Backend Server

system

Light sensors

system, Control

Room and

mobile devices

Street

lamps

LED Street Lighting with

Remote Control Monitoring

System (RCMS)

• Remotely control street

lighting during bad weather.

• Possess real time automated

lighting fault detection and

notification capabilities.

Thermal scanning

for bridge inspection

Thermal scanning at KPE Tunnel

Leveraging on Technology

Capture inventory data, intelligence for fault trend forecast and

insights by correlating various maintenance data to support decision-

making

Provide interactive dashboard for maintenance analysis & reporting

Pre-emptive alert prior to actual failure

To predict and manage the life expectancy of essential equipment and

assets

14

• Hot-in-place Recycling for Trench Reinstatements

– Recycling defective asphalt surface using integrated machinery with a heating system

– Higher productivity as less manpower is required

– Material and energy savings resulting in sustainable construction

– Lower construction noise and faster reinstatement process

• Flowable and Self-compacting Material for Backfilling of Trenches

– Higher productivity as lesser labour required

– Lower construction noise as no compaction required

– Easy application and better consistency in material strength

Ongoing Innovative Study

15

• Development of Rubberized Asphalt Mixes

– Research project to develop rubber asphalt mixes using crumb rubber/natural rubber

– Asphalt mix with better acoustic property giving lower tyre-pavement noise

– Lower noise impact to public living near the roadside

– Effective noise mitigation at source

Ongoing Innovative Study

Scrap Tyres Crumb Rubber

Rubberised Asphalt Mix

Natural Rubber

16

Ageing Infrastructure

Wear from climatic conditions and usage

Increasing scope and more complex structures

More infrastructure constructed

Requirement for sophisticated & specialized system

Higher expectation from road users

Conflicting requirements

road/lane closures for maintenance/upgrading/utility works vs

traffic congestion considerations

public demand/expectations vs roles of multiple agencies

responsible for different aspects of road space

17

Challenges

0 -10 years 5%

11 - 20 years 27%

21- 30 years 52%

31 - 40 years 12%

41 - 50 years 3%

>50 years 1% >100 years

0.1%

Age of Structures

Thank You