Abstract
To alleviate traffic congestion in the city, an integrated waiting area is introduced to the signalized intersection in this paper. After the design idea and the typical form of the integrated waiting area is proposed, the control method at the signalized intersection is discussed. The coordination control process of the main and pre-signal at the signalized intersection with the integrated waiting area is analyzed and modeled. To assess the operational performance of the integrated waiting area at intersections, a microscopic traffic simulation software (VISSIM) is utilized to simulate intersections with and without integrated waiting areas. Key issues concerning signal timing plans are then discussed. With comparisons between the operation of intersections with and without integrated waiting areas, the implementation effect is quantified based on the statistical data of the simulation result. The results confirm the potential benefits of the integrated waiting areas at the signalized intersections and show that integrated waiting areas work best in heavy traffic demand.
Highlights
Over the past few decades, there has been a rapid increase in the number of vehicles in developing countries such as China
As a special and complex traffic control mode, integrated waiting area (IWA) has been proposed recently as a solution to increase the capacity of the signalized intersection without flaring up the approaches
To increase the utilization ratio of the approaches at signalized intersections, the pre-signal control is introduced into the integrated waiting area and a traffic control method combining the variable lanes and waiting areas is proposed in this paper
Summary
Hunan Provincial Key Laboratory of Intelligent Processing of Big Data on Transportation, School of Computer & Communication Engineering, Changsha University of Science & Technology, Changsha 410004, China. Featured Application: Integrated waiting area can be used to increase the capacity of signalized intersections where land use is limited for the traffic movement without flaring up the approaches
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