Pedestrian head start signals, also known as leading pedestrian interval (LPI), are one of the most effective, low cost safety features applicable to signalized intersections for addressing left turn collisions with pedestrians at signalized intersections. LPIs are a feature of a traffic signal that provides pedestrians with the opportunity to begin crossing the street before vehicles are permitted to proceed by delaying the green signal. This allows pedestrians to establish a presence in the crosswalk, which increases the visibility of pedestrians to drivers, and thereby reduces conflicts with turning vehicles.

100 locations will be equipped with new LPIs in 2019.