Road traffic problems are usually created at intersections where vehicles are often interrupted due to traffic signs and signals. In Indiana, there exist many isolated intersections of major roads with minor roads. It was observed that on those major roads, such as multi-lane highways, the vehicle platoons were predominant traffic characteristics. However, the current traffic control systems could not account for the presence of vehicle platoons, and vehicle platoons were interrupted or stopped very often, leading to a rise in travel time, fuel consumption and pollutant emission. It was thought that if the vehicle platoons were predictable, a platoon-based signal control algorithm could be developed to take the platoon information into consideration so as to minimize interruptions to the movement of vehicle platoons on the major roads. This study investigated the characteristics of vehicle platoons on Indiana highway corridors, and developed a control algorithm for timing signals at isolated intersections accordingly. This study also investigated deployment of detectors for acquiring real time platoon information and developed a simulation program for generating and visualizing platoons.


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