Your coach is leaking fuel after a motorway shunt and you smell vapour in the saloon. What should you do?

1. Keep passengers seated with doors closed to preserve air-conditioning
2. Ask smokers to finish outside the front door only
3. Stay on the carriageway and wait for the operator’s mechanic before any evacuation
4. Secure the scene as best you can, stop engines and ignition sources, and evacuate passengers to a safe place away from the vehicle and traffic