Table of Contents

5.11 Third Party Shared Assets

When the road reserve is owned by the road agency, the performance of assets within the road reserve which are owned by third parties (commonly public utilities such as electricity, gas and water supply and telecommunications infrastructure) is generally managed by the relevant service agency.

The road agency, in liaison with the asset owner, needs to ensure that the installation, operation and maintenance of these assets has minimum impact on the safety, efficiency and amenity of road users and the wider community and, conversely, that the service provided by those assets are not affected by the operation and maintenance of the road system. For example, covers for service inspection openings and valves below trafficked pavements or footpaths can present a particular hazard for road users and pedestrians. The level, alignment and surface texture of such covers must be maintained to match the paved surface.

The prime concern of the road agency is knowledge of the nature and location of third-party assets in the road reserve, liaison and incident reporting arrangements.

Table 5.1 presents the management strategy development for third party shared assets and Table 5.2 presents the maintenance practices for third party shared assets.

Table 5.1: Other corridor and road side assets – asset management strategy development

Asset classAsset componentsPredictable asset life cycle and service failureService failure modeImpacts of service failure are significantHigh costs of inspect monitorMonitor
and inspection
Routine operational maintenanceReactive response to service failureRoutine
asset maintenance
Proactive programmed repair/
renewal
Reactive programmed repair/
renewal
ON/
OFF
CTS1
Roadside vegetationGeneral     
Conservation areas     
Landscape areas     
Firebreaks    
CommentInventory of vegetation is commonly limited to record of generic vegetation types and condition. Detailed inventory is only maintained for specific trees/vegetation of high conservation significance or landscaped areas requiring active management. Monitoring inspections are commonly undertaken on a seasonal basis.
Geotechnical structures     
CommentDetailed inventory of geotechnical structures is maintained, including design data. The frequency of programmed inspections and maintenance is determined by the design and assessed risk and consequence of structural failure.
Roadside facilitiesRoadside sculptures etc.        
Heritage assets in road reserve      
Roadside rest areas   
Comment

An inventory of roadside facilities is generally maintained.
In addition to the condition of the assets, the condition of vehicular access and parking is commonly monitored concurrently with inspections of the abutting roadway.
Frequent inspections (up to twice daily) and operational maintenance is undertaken for busy roadside rest areas, particularly those with water supply, toilets and waste disposal.

Transit facilities    
CommentTransit facilities are commonly managed by/in liaison with the transport operator. Annual structural inspections and more frequent operational inspections and maintenance is undertaken, depending on the facilities provided and the number of transit passengers served.
DrainageCulverts  
Catch and Table drains      
Kerb & gutter      
Drainage pits      
Subsoil drains     
Batter drains     
Pumping stations   
Comment

Inventory of drainage assets is commonly limited to subsurface drainage systems, particularly the location of inlets and outlets and the capacity and condition of components located under road pavements.
Seasonal inspections and maintenance focus on clearance of debris and sedimentation from inlet locations.
Periodic inspections of the structural condition of subsurface drainage components under road pavements may include remote camera technology, if warranted by the risk of collapse and potential disruption to traffic.
Frequent inspections and operational assurance testing is required for fail-safe performance of pumping systems.

Environmental treatmentsSedimentation basins, bio‑treatment ponds       
Gross pollutant traps     
Tunnel exhaust stacks     
Leachate treatment plant      
Comment

Inventory of environmental treatment facilities will record location, design capacity and cross-reference to design details and programmed structural and operational maintenance requirements.
Inspection and monitoring requirements will be specific to each facility and will also depend on the consequences of a system failure.

Signs and delineation

Roadside signs
– critical

    

Roadside signs
– non-critical

      
Guide posts     
Support structures    
Pavement markings
– critical
     
Pavement markings
– non-critical
       
Comment

Inventory of signs and delineation will give priority to recording the location and date of installation of regulatory signs and markings. Records of the location of warning signs will be a second priority and information signs a third priority.
Frequent inspections of regulatory and warning signs and markings are conducted to assess sign condition and legibility (both day and night conditions).
Inspections of information signs are conducted less frequently.

BarriersRoadside barriers      
Median barriers      
Movable medians    
Comment

Inventory data commonly include location and type of barrier.
Inspections of condition and functionality are commonly undertaken with routine road maintenance inspections.

Street lighting    
Walls and fencesNoise walls      
Boundary fencing       
Pedestrian fencing      
Rock protection fencing       
Comment

Inventory data commonly include location and type of wall or fence.
Detail of low cost farm fencing in rural areas is not commonly recorded.
Condition of pedestrian fencing and rock protection fencing is commonly monitored as part of routine maintenance inspections.
Large noise walls are recorded in a structures inventory and condition is monitored in accordance with policy for management of bridges and structures.

PathsBicycle paths      
Pedestrian paths      
Comment

Inventory data is commonly limited to location of path and surfacing type.
Periodic condition inspections and maintenance are undertaken in conjunction with routine maintenance of the adjacent roadway.

Third party/shared assetsRailway crossings     
Service utilities in road reserve       
Irrigation channels        
Navigation lights on bridges     
CommentRoad agencies seldom maintain inventory data of third party/shared assets excepting aspects which may affect the safe operation of the road network. For example, location of power sources, emergency switches and valves.
Note:CTS = continuous

Table 5.2: Other corridor and road side assets – maintenance procedures

Asset class Asset components Operational maintenance Routine maintenance Programmed renewal/maintenance
Roadside vegetation

General

Conservation areas

Landscape areas

Firebreaks

Litter collection

Removal of fallen or dangerous branches over roadway

Mowing/slashing/pruning/cropping vegetation

Removal/spraying of noxious weeds

Replantings

Fuel reduction

Geotechnical structures

Wire gabions

Rock anchors

Protective beaching

Retaining walls

Removal of loose materials fallen on roadway

Removal of debris

Inspection and tensioning of anchors

Removal of graffiti

Repair of scouring

Replacement of failed segments
Roadside facilities

Roadside sculptures, etc.

Heritage assets in road reserve

Roadside rest areas

Litter collection

Removal of graffiti

Cleaning of road user facilities (toilets, fireplaces, tables and seats)

Repair of signage, lighting and fencing

Routine maintenance of paved areas

Replacement of signage and fencing

Periodic resurfacing of paved areas

Repainting of facilities

Repainting/resurfacing of sculptures

Transit facilities  

Litter collection

Removal of graffiti

Cleaning of passenger facilities

Repair of signage, lighting and fencing

Routine maintenance of paved areas

Replacement of signage, fencing and pavement markings

Periodic resurfacing of paved areas

Repainting of facilities

Drainage

Culverts

Catch and Table drains

Kerb and gutter

Drainage pits

Subsoil drains

Batter drains

Pumping stations

Litter and debris collection

Removal of siltation

Pump operation check (system‑specific)

Reshaping earthen drains

Repair of joints/leakages

Routine pump maintenance (system-specific)

Replacement of failed segments

Flushing of subsurface drainage system

Periodic pump dismantle and service (system-specific)

Environmental treatments

Sedimentation basins

Bio-treatment ponds

Gross pollutant traps

Leachate treatment plant

Litter and debris collection

Sample and analyse outflows

 

Periodic removal of sediment

Periodic replanting of vegetation

Signs and delineation

Roadside signs

  • critical

Roadside signs

  • non-critical

Guide posts

Support structures

Pavement markings

  • critical

Pavement markings

  • non-critical
Cleaning of signs and guideposts

Repair/replacement of damaged signs and delineation in critical locations

Inspection of structural condition of supports

Replacement of substandard (faded/non retroreflective) signs and delineation.

Repair/renewal of supports

Periodic remarking of lines and pavement markings.

Street lighting   Monitor and inspect operation Replace failed lighting units Periodic cleaning of lens and reflectors
Barriers

Roadside barriers

Median barriers

Movable medians

Monitor and inspect barrier condition, continuity and anchorages

Lubricate and service moveable barrier system

Adjust anchorage cables

Replace damaged sections

Periodic replacement of structurally deteriorated components (e.g. timber posts)
Walls and fences

Noise walls

Boundary fencing

Pedestrian fencing

Rock protection fencing

Removal of graffiti

Inspect for continuity and condition

Repair/replace damaged/vandalised sections

Remove build-up of fallen rock/debris

Periodic replacement of structurally deteriorated components

Periodic painting/resurfacing of noise walls/retaining walls

Paths

Bicycle paths

Pedestrian paths

Inspect surface condition and hazards/obstructions

Routine maintenance of pavement (cracking, potholes, edge breaks)

Removal of overhanging vegetation

Periodic resurfacing

Periodic (seasonal) vegetation lopping

Third party/shared assets

Railway crossings

Service utilities in road reserve

Irrigation channels

Navigation lights on bridges

Monitor and inspect operation (service owner)

Monitor and inspect impacts on road reserve (road agency)

Service repairs (service owner)

Emergency pavement repairs (service owner or road agency at service owner cost)