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Results: 1 - 2 of 2 Adaptive Signal Control IV: Evaluation of the Adaptive Traffic Control System in Park City, Utah (Mar. 2006, MPC-06-182, Project #251) Peter Martin, Aleksandar Stevanovic, and Ivana Vladisavljevic This research evaluates the effectiveness of the future Utah Department of Transportation (UDOT) adaptive signal control system on the arterial street network in Park City, Utah, that experiences both everyday and unpredictable changes in traffic flow. This report contains the planned methodology for the project and the results from the "before" evaluation of the system. The results in this report represent measures of effectiveness from the traffic data collection before the ATCS is installed. Keywords: Traffic operations, traffic control, driver behavior, automated enforcement  |  | Utah Intersection Safety - Recurrent Crash Sites: Identification, Issues and Factors (Dec. 2005, MPC-05-176, Project #254) Wayne D. Cottrell and Sichun Mu A study of collisions occurring at intersections along State routes in Utah was conducted. The number of crashes, the crash severity score and, for selected locations, the crash rate were determined and "ranked" for intersections within the Utah Department of Transportation's Region 1, Region 2, Region 3, Region 4's three districts, and the entire Statestate. Study periods of ten years (1994-2003) and three years (2001-2003) were used. The Crash Data Delivery System (CDDS) was used to identify intersections, determine crash frequencies and severities, and find other collision-related statistics. Detailed examinations of individual crash sites were not performed in this study, although the report contains some general recommendations. Additional analysis should investigate collision types by crash severity at a variety of intersections, crash rates at intersections between State and non-State routes, and variable functional influence areas. The research team considered the CDDS to be a useful tool, and encourage its continued development, including the customization of certain database search procedures. Keywords: intersection operations, intersection safety, traffic control, driver behavior, safety management, traffic signal timing, automated enforcement, motor vehicle crash statistics | | | |
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