In order to obtain continuous data on trail use in Greater Philadelphia, the Delaware Valley Regional Planning Commission (DVRPC) will be installing up 12 permanent automated bicycle and pedestrian counting stations on Circuit trails this spring. The automated counting equipment for these stations, acquired with a grant from the William Penn Foundation, will provide continuous data on bicycle and pedestrian use and will allow DVRPC to develop seasonal adjustment factors that can be used to predict annual cyclist and pedestrian traffic based on week-long counts. Given their short duration, DVRPC can perform week-long counts at a much wider variety of locations.
Each permanent counting station will consist of both a passive infrared pyro-electric unit, which will detect changes in temperature when a person passes the sensor, and an inductive loop, which will stretch across the trail surface and detect the electromagnetic signature of bicycle wheels as they pass over. The passive infrared unit sits inside a trailside post about waist high. The inductive loop is a low-profile cable attached to the surface of the trail using highly durable road tape.
Photo used with permission of EcoCounter