City of Bend Arterial and Collector Safety Program Development
KAI worked with City of Bend staff to redesign and redevelop how the City identifies and prioritizes safety projects. A framework plan was initially developed that takes into account the City's goals and data available to incorporate the best-available safety evaluation methods into a program the City can conduct annually. The project included development of tools and methods that apply objective and quantitative methods and support the framework. With available data, KAI and the City applied the tools and methods to develop a list of prioritized safety projects.
The program follows the cyclical process for safety management outlined in the Highway Safety Manual, but included an additional introductory phase that helped the City establish safety goals based on a review of reported crash trends in Bend and three comparison cities. The safety goals informed network screening that identified the top sites with potential for crash reduction. The top 5-10 sites within three reference populations (signalized intersections, unsignalized intersections, and roadway segments) were identified for diagnosis and countermeasure selection. The quantitative reduction in crashes associated with selected countermeasures was used to estimate and rank projects based on benefit-cost ratios.