Pedestrian Head Starts, also called Leading Pedestrian Intervals (LPIs), are a known and proven safety intervention used around the country. These give pedestrians the walk signal several seconds before drivers get a green light, so pedestrians can begin crossing the street before drivers start to turn. This makes the person driving more likely to see and stop for them.
Studies from other cities have found reductions in pedestrian crashes and near-misses as a result. Pedestrian Head Starts have been shown to reduce pedestrian-vehicle collisions as much as 60 percent at treated intersections, according to the Urban Street Design Guide by the National Association of City Transportation Officials.
View Portland's Pedestrian Head Starts signals with this map: