How Long Is Your LPI? Balancing Pedestrian Comfort and Traffic Impacts with an Elongated Leading Pedestrian Interval

摘要

The Leading Pedestrian Interval (LPI) is an effective, low-cost method to improve pedestrian accommodations at signalized intersections. An LPI causes the Walk indication to appear before the green signal for parallel traffic, allowing pedestrians to start crossing a major street before conflicting vehicles begin to turn.