1. No road user should enter a level crossing whose barriers or semi-barriers are traversed on the road or in a raising or crossing motion, or when their traffic lights impede the passage with their stopping directions.
2. No road user should enter a level crossing without barriers, semi-barriers or traffic lights, without first having ascertained that no vehicle travelling on the rails is approaching.
3. No user should enter a tunnel or underpass if a traffic light does not allow the passage in the mouth of the tunnel, with the exception of the teams of emergency services, mechanical assistance and road maintenance.