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Publication Number: FHWA-HRT-06-090
Date: June 2006
PBCAT-Pedestrian and Bicycle Crash Analysis Tool
FHWA Contact: Ann Do, HRDS-06, 202–493–3319, email@example.com
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This TechBrief provides a summary of the computer software, Pedestrian and Bicycle Crash Analysis Tool (PBCAT) Version 2.0, which replaces PBCAT Version 1.0. The application manual for the software, Pedestrian and Bicycle Crash Analysis Tool (PBCAT): Version 2.0 Application Manual, FHWA–HRT–06–089, will be published by the Federal Highway Administration (FHWA).
What is PBCAT?
In 2004, 4,641 pedestrians and 725 bicyclists were killed in traffic crashes, accounting for more than 12 percent of all traffic fatalities in the United States. An additional 68,000 pedestrians and 41,000 bicyclists were reported to be injured as a result of incidents involving motor vehicles.1,2 PBCAT is a software application designed to assist State and local pedestrian and bicycle coordinators, planners, and engineers in addressing pedestrian and bicyclist crash problems.
PBCAT accomplishes this goal by enabling users to develop a database of details associated with crashes between motor vehicles and pedestrians or bicyclists. One of these details is crash type, which describes the pre–crash actions of the involved parties. After developing a database of crash information, PBCAT users can analyze the data, produce reports, and select countermeasures to address the problems identified by the software.
Why Crash Typing?
The development of effective countermeasures to prevent bicyclist and pedestrian crashes is hindered by computerized State crash files that contain insufficient details about the crashes. Analysis of these files often provides data that includes where pedestrian and bicyclist crashes occur, such as the city, street, type of street, or intersection; when crashes occur, such as the time of day or day of the week; and the characteristics of the victims, such as their age, gender, and severity of injuries. These data, however, do not provide adequate detail to determine the sequence of events that lead up to and cause crashes.
During the 1970s, the National Highway Traffic Safety Administration developed methodologies for typing pedestrian and bicycle crashes to better define the sequence of events and precipitating actions leading to crashes.3,4 In the 1990s, the methodologies were applied to more than 8,000 pedestrian and bicycle crashes in six States. The results provided a representative summary of the distribution of crash types experienced by pedestrians and bicyclists.5,6,7 Over time, this method has evolved and was refined during development of PBCAT Version 1.0.8
Version 2.0 Features
PBCAT Version 2.0 includes significant improvements in functionality and has an enhanced design that makes the software easier to use. Some features of PBCAT Version 2.0 include:
PBCAT Version 2.0 can be downloaded from www.tfhrc.gov, http://www.walkinginfo.org/facts/pbcat/index.cfm, or http://www.bicyclinginfo.org/facts/pbcat/index.cfm. The compressed file for PBCAT Version 2.0 is 40 megabytes and should be downloaded over a broadband connection. Using a 56K connection to download the software may take up to 2 hours. Users who do not have a broadband connection can request a copy of PBCAT Version 2.0 on CD–ROM by sending an e–mail to firstname.lastname@example.org. For more information on PBCAT Version 2.0 or FHWA's pedestrian and bicycle research program, contact Ann Do of FHWA at email@example.com.
Figure 1: Form designer.
Figure 2: Location data.
Figure 3: Crash report.
Figure 4: Countermeasure description.
Figure 5: Countermeasure matrix.
Researchers—This product was developed by David L. Harkey, Sean Tsai, Libby Thomas, and William W. Hunter of the University of North Carolina, Chapel Hill, NC.
Distribution—This TechBrief is printed with direct distribution to the Divisions and Resource Center. Printed copies can be obtained from the FHWA Research and Technology Product Distribution Center by e-mail to firstname.lastname@example.org, by fax to 301–577–1421, or by phone to 301–577–0818. Electronic copies are available on the Turner-Fairbank Highway Research Center Web site. To download this TechBrief, go to www.tfhrc.gov.
Availability—The software and manual Pedestrian and Bicycle Crash Analysis Tool (PBCAT) Version 2.0, which is the subject of this TechBrief, will be available for download from www.tfhrc.gov, http://www.walkinginfo.org/facts/pbcat/index.cfm, or http://www.bicyclinginfo.org/facts/pbcat/index.cfm.
Key Words—pedestrian crashes, bicycle crashes, crash typing, crash analysis, pedestrian countermeasures, bicycling countermeasures.
Notice—This document is disseminated under the sponsorship of the U.S. Department of Transportation in the interest of information exchange. The U.S. Government assumes no liability for the use of the information contained in this document. The U.S. Government does not endorse products or manufacturers. Trademarks or manufacturers' names appear in this report only because they are considered essential to the objective of the document.
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Research, Development, and Technology