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Research Reports
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29 report(s) found with traffic in the keywords field  Recent design requirements for traffic signal and sign structures incorporated fatigue load criteria related to wind that are producing significant increases in size and cost. The Fourth Edition of the AASHTO Luminaire and Traffic Signal Specification (2002 with interims) specification is a significant... Keywords: wind load, wind power, traffic signal pole, luminaire, fatigue, fatigue load In 2005, the Utah Department of Transportation (UDOT) installed the Sydney Coordinated Adaptive Traffic System (SCATS) in Park City, Utah, on its network of 14 signalized intersections. A field evaluation compared previous time-of-day actuated-coordinated signal timings with those dynamically computed... Keywords: traffic operations, traffic control, driver behavior This paper presents preliminary results of the VISUM Online validation. It compares traffic conditions estimated by VISUM Online to measured data. The results show that VISUM Online produces comparable traffic measures. Keywords: construction, design-build, highway, traffic, intelligent transportation systems (ITS) In this paper, elevator trip generation equations are estimated from detailed facility, land-use, and highway traffic data in North Dakota. A trip attraction equation is used to explain the effects of elevator storage capacity and side track capacity on elevator throughput. Elevators are classified on... Keywords: agricultural, roads, planning, trucking, traffic 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... Keywords: Traffic operations, traffic control, driver behavior, automated enforcement 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... Keywords: intersection operations, intersection safety, traffic control, driver behavior, safety management, traffic signal timing, automated enforcement, motor vehicle crash statistics This study reports on the performance of the extended HOV lines. Vehicle volume, average vehicle occupancy (AVO), modal split, person throughput, and violation rate were collected manually. Travel time and speed data were collected using the floating car method and global positioning system (GPS) software.... Keywords: driver behavior, traffic control The movement of freight within the state of Wyoming is very critical to Wyoming's economy as well as the national economy. Wyoming's transportation system provides a vital link for the movement of commodities across the United States, in addition to providing access to the mineral, industrial, and agricultural... Keywords: freight traffic, freight transportation, freight security, transportation planning, travel patterns, accident analysis, wind An MPC-funded study has shown that High Occupancy Vehicle lanes constructed in association with the re-construction of the I-15 are effective. This study will extend the study through a more extensive field data collection exercise. In this way, the validity of the original project (HOV I) will be e... Keywords: traffic management, traffic signal systems
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