In a coordination plan, what does the term "split" refer to?

Answer: A — The amount of time each phase receives at an intersection

In the context of a coordination plan for traffic signals, the term "split" specifically refers to the amount of time allocated to each individual phase of a traffic signal at an intersection. This partitioning of time is crucial for managing the flow of traffic, as it determines how long each direction of traffic has the right of way. Understanding how much time each phase receives helps in optimizing traffic flow, reducing congestion, and ensuring safety for vehicles and pedestrians. For example, if an intersection's split is not balanced according to traffic demands, it can lead to situations where one direction is left waiting too long, potentially causing delays and frustration for drivers. While other aspects of traffic signal management, such as synchronization across intersections or the division of signal phases among approaches, are important elements of a comprehensive traffic strategy, the specific reference of "split" pertains directly to the timing associated with each traffic signal phase at an intersection.