Countdown Pedestrian Signals Presentation by Jack Fleck, City/County of San Francisco February 28, 2006
Countdown Questions Will cars speed up to make the light? Will more pedestrians start to cross on the Flashing Red Hand? Is it better to start the countdown on the Flashing Red Hand or on the Walk symbol? Will pedestrians be able to judge how much time it takes them to cross? Will the intersections be safer?
Pilot Project Countdown signals initially installed at 14 test locations, 9 assessed. City eventually replaced pedestrian signals with Countdown Signals (over 700 intersections). More energy-efficient, so electricity savings will eventually pay for LED device installation
Additional Pilot Study Results
Citywide Countdown Results: Pedestrian Related Collisions With pedestrian signals (579 sites) Without pedestrian signals (204 sites) Citywide reported total BeforeAfterChange% Change With pedestrian signals (579 sites) % Without pedestrian signals (204 sites) %
Countdown Signals: Impact on Vehicle Collisions With pedestrian signals (579 sites) Without pedestrian signals (204 sites) Citywide reported total BeforeAfterChange% Change With pedestrian signals (579 sites) % Without pedestrian signals (204 sites) %