What does TSP stand for in the context of traffic operations?

In the context of traffic operations, TSP stands for Transit Signal Priority. This concept involves traffic signal control strategies that allow transit vehicles, such as buses or trams, to receive priority at traffic signals in order to improve their travel times and reliability. Implementing TSP can help mitigate delays caused by traffic congestion, enabling transit services to operate more efficiently and make public transportation a more attractive option for commuters.

Transit Signal Priority works by adjusting the timing of traffic signals in favor of approaching transit vehicles. This can include extending green light durations, reducing red light phases, or initiating green lights earlier for transit vehicles. The priority can be triggered through various methods, such as detecting the presence of the vehicle or using onboard communication systems that relay the vehicle's approach to the signal controller.

Other options mentioned, such as Traffic Signal Preemption, refer to different aspects of traffic signal control, typically concerning emergency vehicles rather than public transit. Thus, while they are relevant topics in traffic operations, they do not pertain specifically to the concept of TSP.