This second part of the Manual addresses particular elements of tunnels taking operational and safety requirements into consideration.
Chapter Geometry addresses the geometrical characteristics of the tunnels and their influence on operation and safety.
Chapter Structural Facilities related to Operation and Safety deals with the structural facilities that support operations and safety and must be taken into account at the early stages in a tunnel project, and whose impacts should not be underestimated, particularly on costs.
Chapter Equipment and systems reviews the different types of tunnel equipment and gives recommendations covering the whole of their lifecycle.
Lastly, chapter Tunnel response to fire addresses the performance of materials, structures and equipment in fire.