4.4.1 Stakeholder Needs
The selection of a treatment type will depend on a number of site-specific parameters relating to the job, and also the need to balance the requirements of all relevant stakeholders. The stakeholders can be broadly divided into three categories:
- road asset managers
- road users
- the community.
The needs of these groups are summarised in Table 4.1.
Table 4.1: Summary of the needs of the principal stakeholder groups in surfacing selection
| Considerations | Stakeholders |
|---|
| Road asset managers | Road users | The community |
|---|
| Practicality | - Existing shape and texture
- Climate: temperature and rainfall
- Treatment availability
| - Maintaining access during construction
| |
| Cost | - Initial costs including traffic management
- Maintenance under traffic
- Replacement costs of markings and delineation
| - Delays to road users during construction, maintenance and rehabilitation
- Fuel consumption:
- Vehicle depreciation:
- wear and tear
- windscreen damage
| - Minimising damage to goods
- Reducing haulage costs
|
| Longevity | - Treating existing pavement issues:
- surface cracking
- texture loss
- aggregate polishing
- maintain waterproofing
- Resist traffic stresses from:
- volume, composition & speed
- turning/stopping
- stresses from vertical and horizontal geometry
- Performance of surfacing:
- fatigue resistance
- resistance to flushing
- skid resistance
| - Maximising network access
- Minimising delays
| - Reduce frequency of intervention
|
| Safety associated with construction, maintenance and use | - Accident history and statistics
- Site vulnerability for accidents
- speed environment
- traffic density
- site geometry
- delineation effectiveness
- Skid resistance requirements
| - Skid resistance
- Visibility:
- glare and reflection
- conspicuity of delineation
- spray generation
- Windscreen damage
- Traffic management during operations
- Drop-off at pavement edges
- Pedestrians/cyclists:
- conspicuity
- surface texture
| - Construction workers and adjacent residents:
- fumes and dust
- traffic management during operations
|
| Environmental | - Legislative responsibility
- Recycling potential
- Pollution, air, noise and water
| - Noise and dust
- Aesthetics:
- Pick-up of bitumen by vehicles or pedestrians
| - Adjacent residents:
- Fumes during construction and use
|
Source: Austroads (2009a).
