Leading Pedestrian Interval (LPI)

Example of Leading Pedestrian Interval Countermeasure; Vehicles have to wait... ... so that pedestrians get a head start.
Photo courtesy of www.pedbikeimages.org / Toole Design Group

This countermeasure is only applicable for signal controlled intersections.

Pedestrian-vehicular crashes often occur at signalized intersections where the pedestrian crossing paths conflicts with right-turning and left-turning vehicular movements during a signal phase. Leading Pedestrian Intervals or LPIs provide 3 to 10 seconds of advance WALK signal only for pedestrians, where vehicles are traveling in the same direction or turning right or left across the crosswalk. During the advance WALK only, pedestrian signal phase, pedestrians get a “head start” crossing the intersection while parallel and conflicting turning movements are at a stop.