Publications Routes/Roads Road tunnel operations

This page lists Routes/Roads articles of PIARC in the field of road tunnel operations. These publications are classified chronologically.

  • The RAMS-Approach for Road Tunnel Operations

    There are several ways to optimize life cycle performance whilst maintaining the required level of road tunnel safety. One possible approach is based on monitoring the Reliability, Availability, Maintainability and Safety (RAMS) of systems, based on pre-defined requirements. This methodology has been extensively used in many industries (Military, Aerospace, Chemical, etc,). In the transport sector, it was first used in the railway industry, but can easily be adapted to road transport, including [...]

  • Influence of Activated Fixed Fire-Fighting Systems on User Behaviour during Self-Evacuation

    An important objective of safety measures in road tunnels is to ensure that tunnel users are able to self-rescue in the case of an incident. The influence of fixed fire-fighting systems (FFFS) on the success of self-evacuation of tunnel users has been investigated in a virtual reality (VR) situation and in real tests to establish their effect on the tunnel users' evacuation behaviour.

  • Lean Tech: How to Reduce the Ever-Increasing Equipment in Modern Road Tunnels?

    The article shows how to potentially simplify technical installations without creating new risks, whilst always being adapted to safety requirements.

  • Air Velocities Permitted in Road Tunnels, and Other Requirements for a Safe Escape Route in Case of Fire

    In The Netherlands tunnels are usually equipped with an escape gallery between tunnel tubes, to support evacuation in case of a tunnel fire and/or an incident involving dangerous goods. Overpressure ventilation prevents the smoke from entering the gallery, when emergency exit doors are opened. The article deals with the acceptable air velocity in the escape route and shows the results of tests organized with over a hundred test persons in an actual tunnel.

  • Effectiveness of Risk Mitigation Measures for Road Tunnels

    The article provides a survey of risk mitigation measures, describes their effectiveness and gives some indication of their possible quantitative influence.

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