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PIARC (World Road Association), founded in 1909 and comprising 125 member governments from all over the world, is the global forum for exchange of knowledge and experience on roads, road transport policies and practices. With consultative status to the Economic and Social Council of the United Nations, the Association is contributing to a stable and sustainable global development of the road and transport sector.

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Road Network Operations & Intelligent Transport Systems Manual

A guide for practitioners

This electronic manual on Road network operations & intelligent transport systems is a comprehensive, regularly updated handbook helping practitioners to alleviate road congestion, a major worldwide issue that directly affects the economies of many nations.

Road Network Operations (RNO) concern the methods at the disposal of road authorities and highway infrastructure operators that contribute to safer and more efficient travel for road users and for society as a whole. This includes techniques such as traffic incident detection, incident management, traffic control (urban and inter-urban), traveller information (pre-trip and on-trip), public transport priorities, electronic payment and travel demand management techniques.

Intelligent Transport Systems (ITS) concern a wide range of services that use information and communications technology that can improve transportation and mobility. They have become a core discipline in Road Network Operations, varying from country to country in levels of take-up and local applicability. This website offers guidance on the effective use of ITS in Road Network Operations based on practical experience in many countries.