What should a driver do if their vehicle breaks down or they are involved in a collision in a tunnel?

Switch off all lights and remain in vehicle until help arrives.
Beckon other traffic to overtake.
Signal all other traffic to stop.
Switch on hazard warning lights and walk to emergency station to call for help.

Explantion: If your vehicle breaks down or is involved in a collision in a tunnel, switch on your hazard warning lights, switch off your engine, go to an emergency station and use the emergency phone to alert the tunnel operator.

Theory Tester

What should a driver do if their vehicle breaks down or they are involved in a collision in a tunnel?

Managing Risk