What does the term "pedestrian clearance interval" refer to?

The term "pedestrian clearance interval" specifically refers to the time allotted for pedestrians to safely cross the street after the light turns red. This interval is crucial for ensuring that pedestrians have enough time to clear the crosswalk before vehicles receive a green light to proceed, thereby enhancing safety for individuals on foot.

The clearance interval is designed to provide a buffer period, allowing pedestrians who are already in the crosswalk to reach the other side safely. It is distinct from other signal phases, as it directly addresses pedestrian movement in relation to vehicular traffic signals. Understanding this concept is key to traffic engineering and pedestrian safety considerations.