Which phases are typically assigned to the major-street through movements?

In traffic signal operations, the design of signal phases is crucial for managing the flow of vehicles effectively at intersections. Typically, the major-street through movements are assigned to the phases that allow for continuous flow where the majority of traffic volume occurs.

Phases dedicated to major-street movements tend to occupy the sequence of pedestrian and vehicle movements that ensure uninterrupted progression along that street. By assigning phases that correspond to these movements, traffic signals can optimize the green time to align with peak traffic flows, thereby minimizing delays for the vehicles traveling on the major street.

In the context of the options provided, phases 2 and 6 are traditionally associated with the major-street through movements, as they correspond to the typical sequencing found in many traffic signal timing plans. This allows the signals to prioritize the mainline traffic while accommodating turning and pedestrian movements in a structured manner.

Understanding the function and timing of different phases is essential for traffic signal technicians, as it helps in maintaining efficient traffic flow and enhances safety at intersections.