Published in 2011
To incorporate safety into the regional planning process, a Virginia-specific resource guide was recently developed for use by districts of the Virginia Department of Transportation (VDOT) and planning district commissions (PDCs). In order to determine how to enhance the implementation of the guide throughout Virginia, a pilot implementation of the guide was conducted in one Virginia PDC---the Roanoke Valley-Alleghany Regional Commission---where representatives helped identify tasks the guide should help them accomplish. Deliverables included (1) acquiring crash locations for incorporated cities (for which VDOT has not historically maintained roads); (2) identifying high-crash locations; (3) determining potential crash countermeasures; and (4) using safety-related performance measures that do not rely exclusively on crash data. These four deliverables corresponded to three modules in the resource guide: data needs (Deliverable 1), data analysis (Deliverables 2 and 3), and performance measures (Deliverable 4).
The pilot implementation showed that most (87% of county crashes and 93% of city crashes) crashes could be successfully located in a geographic information system environment; that potential crash countermeasures could be identified based on a study of the characteristics of these crashes; and that for instances where crash data are likely to be sparse, non–crash-based performance measures are feasible. However, the pilot implementation showed that four additional types of guidance, not fully specified in the resource guide, may make accomplishing these tasks easier:
These four types of guidance are provided in Appendix B and in the examples provided in the body of this report. The pilot implementation also showed that it may be productive to focus on using the guide for short-term safety and planning initiatives first rather than focusing only on long-range planning issues.
Last updated: November 16, 2023