Pedestrian Crash Risk Assessment Study

A systemic safety analysis was commissioned by ODOT to identify risk for pedestrian crashes on intersections and segments (arterials and collectors) using ODOT District 8 as a pilot and including Greene and Warren Counties in our Region.  Miami and Montgomery Counties in District 7 were later added following discussions with ODOT’s safety program staff.

Using a variety of data impacting pedestrian crashes, risk factors were used to identify the “priority network” — locations where conditions exist for pedestrian crashes to occur on arterial and collector facilities for both intersections and segments.  Several risk factors were considered including roadway characteristics (e.g. speed and traffic volume) as well as area characteristics such as presence of libraries and zero car households.  More than 400 attributes were tested for consideration and the final analysis produced 15 risk factors that were used to identify the priority network.  The analysis focused on the transportation urbanized area since the majority of crashes occur there.  Locations were then plotted on a map based on an overrepresentation of risk factors — the higher the number of risk factors, the higher the risk for pedestrian crashes.

The priority network can be viewed on the map below by zooming in on area of interest.  The query/filter menu on the map can be used to filter priority facilities (intersections and segments) based on their risk score and location.  Both, intersections and segments, are color coded according to their crash risk score in the map legend.  Clicking on any of the priority segments or intersections brings up additional data associated with that location including the roadway/intersection characteristics, crashes, traffic volumes, pedestrian crashes, pedestrian crash risk score and crash risk factors.  The data can be viewed in an attribute table on the map as well as be exported to a spreadsheet or an ARCGIS geodatabase.