2. General civil engineering provisions
2.1 Pavements and sidewalks
For tunnels on the trans-European road network, gradients must be less than 5%, unless geographically impossible.
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Sidewalks
A sidewalk must be provided to the right of each direction of traffic, to enable users in distress who have to leave their vehicles to reach safety equipment while remaining outside the lateral traffic gauge. This sidewalk, with a maximum height of 0.25 m, must not be separated from the roadway by a kerb exceeding this height, and its minimum width, beyond the lateral traffic clearance gauge, must be 0.60 m at ground level and 0.75 m at a height of 1.50 m above ground level.
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Pavements
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General civil engineering provisions
Detection and warning
Bibliography
Websites
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French Tunnel and Underground Space Association – AFTES
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Center d'études des tunnels – CETU
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Regulations
Law no. 2002-3 of January 3, 2002 on the safety of transport infrastructures and systems, technical investigations following sea, land or air transport accidents or incidents, and underground storage of natural gas, hydrocarbons and chemicals.
Decree no. 2005-701 of June 24, 2005 for the application of law no. 2002-3.
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