Final answer:
Jake, the firefighter, should wait for a law enforcement officer or someone from the Department of Transportation to arrive to take over traffic control at the site of the emergency.
Step-by-step explanation:
In the given scenario, Jake, who is a firefighter controlling traffic near the site of an emergency, should wait for a law enforcement officer or someone from the Department of Transportation. While the firefighters are responsible for controlling and extinguishing fires, rescuing victims, and providing first aid, it is the task of law enforcement or the Department of Transportation to manage and organize traffic in such situations. The police, a civil force, maintain public order and safety, while the Department of Transportation focuses on infrastructure and systems related to travel and transport. Jake's coordination with these entities ensures a structured response to the emergency, maintaining order and public safety.