What is an example of providing scene support by law enforcement when training involves vehicle traffic?

Providing scene support by law enforcement during training that involves vehicle traffic is exemplified by closing roadways. This action helps to ensure the safety of the training participants and the public by preventing vehicles from entering the training area where emergency scenarios are being enacted. By closing the roads, law enforcement can eliminate potential hazards, allowing firefighters and other emergency responders to focus on their training without the risk of traffic accidents or interruptions.

In this context, while closing airports may also contribute to safety, it is more specific to aerial operations rather than typical vehicle traffic. Providing hearing protection is a safety measure for participants but does not directly relate to managing the vehicular environment. Ensuring adequate water supply is crucial for firefighting but falls outside the realm of scene support regarding traffic management. Thus, closing roadways stands out as the most relevant action for law enforcement to support training operations involving vehicle traffic.