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An Adaptive Signal Control Method with Optimal Detector Locations

1
School of Transportation, Nantong University, Nantong 226019, China
2
JSTI GROUP, Nanjing 210019, China
3
Lyles School of Civil Engineering, Purdue University, West Lafayette, IN 47907, USA
*
Authors to whom correspondence should be addressed.
Sustainability 2019, 11(3), 727; https://doi.org/10.3390/su11030727
Received: 7 January 2019 / Revised: 26 January 2019 / Accepted: 28 January 2019 / Published: 30 January 2019
(This article belongs to the Special Issue Sustainable and Intelligent Transportation Systems)
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Abstract

The adaptive traffic signal control system is a key component of intelligent transportation systems and has a primary role in effectively reducing traffic congestion. The high costs of implementation and maintenance limit the applicability of the adaptive traffic signal control system, especially in developing countries. This paper proposes a low-cost adaptive signal control method that is easy to implement. Two detectors are installed in each vehicle lane at an optimal location determined by the proposed method to detect green and red redundancy time, based on which the original signal timing is adjusted through a signal controller. The proposed method is evaluated through case studies with low and high volume-to-capacity ratio intersections. The results show that the proposed adaptive signal control method can significantly reduce total traffic delay at intersections. View Full-Text
Keywords: adaptive signal control; detector location; signal timing; redundancy time; queue length; intelligent transportation systems adaptive signal control; detector location; signal timing; redundancy time; queue length; intelligent transportation systems
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Zhu, S.; Guo, K.; Guo, Y.; Tao, H.; Shi, Q. An Adaptive Signal Control Method with Optimal Detector Locations. Sustainability 2019, 11, 727.

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