Pedestrian Flows at Signalized Intersections

Early techniques for dealing with pedestrian flows at signalized intersections were concerned with the minimum green time needed for crossing a street and often did not treat green time as a function of the number of people who cross. Recently, new knowledge has been gained about characteristics of pedestrian flow, including relations among speed, flow, and density. In the Interim Materials on Highway Capacity, a method is presented for pedestrian flows and queues at intersections. Some flaws in the method are examined here and a different approach for analyzing the problem is presented. (Author)