Division 1.1.3 X1

Where a tunnel has a special characteristic as regards the aforementioned parameters, a risk analysis shall be carried out in accordance with Article 13 to establish whether additional safety measures and/or supplementary equipment is necessary to ensure a high level of tunnel safety. This risk analysis shall take into consideration possible accidents, which clearly affect the safety of road users in tunnels and which might occur during the operating stage and the nature and magnitude of their possible consequences.