Performance Measures for Arterial Traffic Signal Systems
نویسندگان
چکیده
This project was conducted to investigate new concepts, new tools and emerging technologies directed at enhancing traffic operations and safety on signalized urban arterials that operate under saturated conditions. McFarland Boulevard, a six-lane urban arterial running north-south through Tuscaloosa, AL served as the research focus and test bed for the project. There are nine urban intersections along the study route, with a variety of configurations, turning movements and traffic volumes. In a unique approach, this project was conducted as three related and parallel efforts by the three participating UTCA universities. UAH investigated the feasibility of using video data for determining control delay on the approach to signalized intersections, and used the results to investigate the accuracy of delay predictions by popular simulation models. UAB investigated use of VISTA as a simulation model for saturated arterial traffic flow analysis. UA investigated methods to optimize traffic flow at saturated intersections through enhanced simulation models. This project was conducted to investigate new concepts, new tools and emerging technologies directed at enhancing traffic operations and safety on signalized urban arterials that operate under saturated conditions. McFarland Boulevard, a six-lane urban arterial running north-south through Tuscaloosa, AL served as the research focus and test bed for the project. There are nine urban intersections along the study route, with a variety of configurations, turning movements and traffic volumes. In a unique approach, this project was conducted as three related and parallel efforts by the three participating UTCA universities. The University of Alabama in Huntsville (UAH) investigated the feasibility of using video data for determining control delay on the approach to signalized intersections, and used the results to investigate the accuracy of delay predictions by popular simulation models. The University of Alabama at Birmingham (UAB) investigated use of VISTA as a simulation model for saturated arterial traffic flow analysis. The University of Alabama (UA) in Tuscaloosa investigated methods to optimize traffic flow at saturated intersections through enhanced simulation models. Background – the Rise of Congestion The loss of mobility has become a very serious problem in the United States, to the point that removing congestion choke points is one of two special emphasis issues by the US Department of Transportation. It threatens economic competitiveness by choking shipments of both raw goods and finished products, and it threatens quality of life because American commuters are spending more and more time stuck in traffic. Plan of the US Department …
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