Research Papers

Identification of Problem Locations for Pedestrian Facilities Using Limited Available Data

Filename FINAL-PAPER-90.docx
Filesize 59 KB
Version 1
Date added June 10, 2012
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Category 2012 CMRSC XXII Banff
Tags Session 6C
Author/Auteur Pedram Izadpanah, Alireza Hadayeghi, Alexandre Nolet


The first step in a road safety management plan is to identify problem locations or locations which have potential for safety improvement. In the past few years, most municipalities have attempted to encourage active modes of transportation including walking. One of the challenges associated with identifications of problem locations for pedestrians is that pedestrian volumes are often not available for the entire network in most jurisdictions. As a result, municipalities use simple methods such as the frequency method to identify problem locations. In this research a methodology to quantify potential for safety improvement for pedestrian facilities without the need for pedestrian volumes is proposed. The proposed methodology is a hybrid methodology which cannot account for the Regression-to-the-mean but accounts for variance in collisions. In this methodology, locations are categorized into various reference populations and potential for safety improvement for each location is estimated using the method of moment. The relative risk of each reference population is then calculated to allow comparison of locations which are in different reference population with each other. The locations are ranked based on their adjusted potential for safety improvement. The proposed methodology was successfully applied to pedestrian collisions that occurred at road sections in a relatively large municipality in the Province of Ontario.

Pedram Izadpanah, Alireza Hadayeghi, Alexandre Nolet