Road networks are lifelines for the community and are essential for the economic and social well-being of New Zealand. Natural hazard events can cause significant and widespread damage to transportation networks, leading to significant repair costs to road controlling authorities, access difficulties for emergency services and disruption to road users and the community at large. Currently, no guidelines for setting levels of service and performance measures for roads which are subject to natural hazard events are available. This study, made in 2002-2005, explores which performance criteria are acceptable for various hierarchies of road networks in order to develop a framework that can be used nationally by various road controlling authorities for setting performance measures and levels of service for road links forming New Zealand’s road network. (Author/publisher)
Abstract