What is one of the key concerns when a truck comes to rest on its roof?

One of the key concerns when a truck comes to rest on its roof is the increased chance of fire. This is due to the possibility of fuel leaks or ruptures in the fuel system when a vehicle is inverted. In a roof-down position, the gravitational force can cause fuel to flow toward ignition sources, significantly raising the risk of fire or explosion. The scenario can also complicate the proper venting of the vehicle's fuel systems, further heightening the fire hazard.

In addition, an overturned truck may disrupt the usual containment of flammable substances, leading to spills that can ignite more easily. Understanding this risk is crucial for rescue personnel, as they must quickly assess the situation and take appropriate precautions to mitigate any fire hazards before initiating rescue operations.