What number phase is typically assigned to major street movements in traffic signal operations?

In traffic signal operations, major street movements are typically assigned to phase numbers that allow for efficient movement and safety on the main traffic routes. The number phases for major street movements are often designated as phases 2 and 6. Phase 2 usually represents one direction of traffic, while phase 6 represents the opposing direction, allowing for simultaneous movements and optimal traffic flow.

Phases are categorized in such a way to ensure that major streets can accommodate the highest volume of traffic effectively. By assigning these specific phases to major routes, traffic signals can prioritize traffic on the most heavily traveled roads, improving overall traffic efficiency and reducing delays. This setup enables the management of traffic flow during peak times and ensures that critical movements receive the right of way.

In contrast, the other options do not reflect how major street movements are structured in conventional traffic signal operations; they typically involve minor street phases or other configurations that do not prioritize effective handling of major streets. Thus, option C is aligned with standard practices in traffic signal timing and operations.