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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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  5. Technical Reports

Technical Reports Road tunnel operations

This page lists technical reports of PIARC in the field of Road tunnel operations. These publications are classified chronologically.

  • Road Tunnels: Vehicle Emissions and Air Demand for Ventilation

    In 1990 and 1995 PIARC published the calculation methodology and the emission factors for road tunnel ventilation design. An update of the existing PIARC methodology was necessary, as the emission standards of the vehicles were becoming more stringent and hence the vehicles cleaner. The old version described the emission situation up to the year 1995. This document has been produced by working group 2 of the PIARC Technical Committee on Road Tunnel Operations in the framework of its activities between [...]

  • Good Practice for the Operation and Maintenance of Road Tunnels

    This report complements the report entitled "Reduction of operational cost of road tunnels" which was presented and published at the Kuala Lumpur Congress in 1999. Various aspects of the management and operation of tunnels are considered. A method for providing continuity of management of safety, throughout the life of a tunnel, is described together with issues requiring consideration. The components and value of a Tunnel Management System (TMS) for the operation and maintenance of a tunnel are [...]

  • Cross Section Design of Bidirectional Road Tunnels

    Work on this report started in September 2001 as a continuation of the work carried out between the years 1998 and 2001, which concluded with the report entitled CROSS SECTION GEOMETRY IN UNIDIRECTIONAL ROAD TUNNELS, published by PIARC in March 2001. This report shares the terminology and general approach of the previous document but adapts and extends it to cover tunnels with a single gallery and two directions of travel. The drafting of this report has involved examination of appropriate national [...]

  • Classification of Tunnels, Existing Guidelines and Experiences, Recommendations

    There is growing interest in the use of classification systems for establishing consistent, safe and economic standards for equipping, operating, maintaining and refurbishing road tunnels. As part of its programme of work for the PIARC Committee on Road Tunnels, the Working Group "Operation, Maintenance and Management" undertook a review of chapter 1.1 "Safety - Safety Equipment - Fire Fighting Facilities and Equipment" contained in the report to the XVIIIth World Road Congress in Brussels (PIARC [...]

  • The First Road Tunnel - A Planner Guide for Countries Without Previous Experience of New Road Tunnels

    This Report has been commissioned specifically to assist those concerned with aspects of transport policy and planning which may involve the inclusion of road tunnels. The initiative represents in part a response to a request from the World Bank. While most readers may well belong to countries with no tradition in planning or operating road tunnels, the more general aspects, representing advice currently more widely overlooked, should be of interest to those concerned with decision-making on [...]