What does TSA stand for in the context of transportation?

In the context of transportation, TSA stands for Transportation Security Agency. This agency is an essential part of the U.S. Department of Homeland Security and is responsible for ensuring the security of the nation's transportation systems, including airports, railroads, and highways. It implements measures to prevent threats to passenger safety and the integrity of the transportation network.

Understanding the primary focus of TSA is crucial, as it relates directly to security protocols that are important for every worker involved in transportation, including flaggers. Their work often involves ensuring the safety of both vehicle movement and the pedestrians in high-traffic areas, which links back to the broader safety and security operations coordinated by agencies like the TSA.

On the other hand, the other options either describe nonexistent organizations or confuse the name of the TSA with agencies that do not specifically address the security aspects of transportation.