Where is the pedestrian collision zone?
jialan@u.washington.edu Slides (pdf) A growing body of literature has investigated the relationship between built environment, road design and pedestrian collisions over the last two decades. Different variables such as residential population density, the presence of crosswalks, traffic signals, the facility’s number of lanes, speed limit, average daily traffic volume, and the presence of retail uses, restaurants, alcohol stores…had been identified as key variables that affected the occurrence and severity of pedestrian collisions. Researchers have also tried to identify the dangerous collision areas based on predefined geographic zones, such as traffic analysis zone, census tract, and block group, however due to their uneven sizes and shapes, more questions were raised than solved. In order to fill this knowledge gap and develop an area-based risk assessment method for pedestrian collisions, this research employed a uniform grid structure as the spatial unit to analyze the pedestrian
