Delivering a Risk-based Skid Resistance Strategy for a Roading Network
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Delivering a Risk-based Skid Resistance Strategy for a Roading Network Road safety is a significant risk to a road controlling authority, especially if the condition of its assets contributes directly to accidents. One of the key contributors to road safety is the road surface. Funding is increasingly constrained, so a risk-based skid resistance strategy has to be developed for the road network to give us a prioritized programme of work. In New Zealand, all state highway and local road maintenance (physical works and asset management) is outsourced to the private sector, and Fulton Hogan is a major road maintenance management provider in New Zealand. Working with several local government councils, Fulton Hogan have developed and implemented the following methodology for developing a skid resistance strategy for a roading network: Familiarization with the relevant Council and Transport Agency documents. Road Segmentation: Splitting the road network into segments based on road classification, accident history, high risk locations (as per NZTA's T10 Specification) and surfacing age. Site inspection to confirm the roading segments. Weighted scoring system based on the risk of an accident to give a priority score for each segment. Determine the skid resistance and texture testing regime based on the ranking of the road segments. Develop a suite of treatments, based on performance, including proven aggregate performance. Develop treatment programme, including temporary solutions, based on available funds and site ranking. Develop and implement a monitoring programme to improve strategy. Through a number of case studies, this paper will demonstrate how the development and implementation of this strategy delivers a risk-based prioritized skid resistance works programme tailored to the respective Council's budget.