What is the minimum period for which a crosswalk would flash the green (go) sign?

The minimum period for which a crosswalk would flash the green (go) sign is typically set to ensure that pedestrians have a sufficient amount of time to safely cross the street. A duration of 6 seconds is often recognized as the standard when considering pedestrian safety, allowing individuals ample time to navigate the crosswalk, especially those who may have mobility challenges or slower walking speeds.

This timeframe balances the need for pedestrian safety with the flow of traffic, minimizing the wait time for vehicles while ensuring that pedestrians can safely complete their crossing. Longer durations could lead to delays for vehicular traffic, and shorter durations may not provide enough time for pedestrians, particularly in busy or high-traffic areas.

In this context, other durations like 4 seconds, 5 seconds, or 7 seconds either do not meet the minimum safety standards or could unnecessarily extend the wait for cars.