





Road Surface Rehabilitation
Can provide an even running surface free from major defects and hazards. Can provide a road surface with a high resistance to skidding, helping to reduce loss of control and rear-end type crashes. Can increase pavement strength, weatherproofing and extend life of pavement structure. Provides the opportunity to fix other road surface problems, such as crossfall and drainage. Provides the opportunity for adding or replacing road surface delineation such as painted markings or reflective road studs.
Be aware that improved running surfaces may lead to an increase in vehicle operating speeds and increase risk. The choice of road pavement design, surfacing materials, design mix, and aggregate properties should be carefully considered. Ensure appropriate texture depth, individual aggregate properties such as Polished Stone Value (PSV) and the Skid Resistance Value (SRV) of the road surface is suitable for the location and expected traffic use. Resurfacing should not result in edge drops exceeding 60mm in height as this may cause an errant vehicle to roll over or lose control due to oversteering. Edge drops should be eliminated by additional backfilling of the verge or providing a sloping edge. Weather conditions during construction of bituminous surface courses can affect the laying operation and subsequent performance. Temporary traffic management at road works sites must be carefully designed and managed to ensure the safety of all those who may be affected including site operatives (road workers), road users, members of the general public and local residents.
Treatment Summary
25-40% |
Case Studies
Related Images
Good road surface South Africa. Image credit: iRAP Loose gravel and informal sidewalk. Image credit: IndiaRAP Poor road surface condition. The surface has loose gravel which affects skid resistance. Image credit: IndiaRAP New duplicated section of the Bruce Highway (Cooroy to Curra), Queensland, Australia. Image credit: Luke Rogers, iRAP Poor road surface condition on a National Highway in India. Image credit: IndiaRAP Poor road surface condition (surface deformation) on a National Highway in India. Image credit: IndiaRAP Poor road surface condition (pot holes) on a National Highway in India. rn Image credit: IndiaRAP Poor Surface conditions. Image credit: IndiaRAP Pot holes on National Highway in India. Image credit: IndiaRAP Road surface reconstruction - Manila Philippines. Image credit: iRAP Roadworks. Image credit: iStock Earthworks. Image credit: Unknown Before and after images of a location where alignment and pavement improvements were made in the USA. Image credit: FHWA and NYSDOT







