NDLI: Advantage of cooperative traffic light control algorithms

Content Provider	IET Digital Library
Author	Blokpoel, Robbin Niebel, Wolfgang
Abstract	Contemporary traffic light control systems rely on sensors for detection of traffic which are costly in purchase, installation and maintenance. Emerging cooperative technology offers an attractive alternative where only one road side unit per intersection is required, instead of several infrastructure sensors per lane. However, studies showed that traffic control with cooperative detection requires a penetration rate of at least 20% to function effectively. To show the potential of cooperative traffic control, this study presents three algorithms: (i) the SWARM control algorithm, which is designed to work with very low penetration rates; (ii) an extension to the adaptive control algorithm, ImFlow, which uses cooperative data for enhanced queue modelling; and (iii) an ImFlow extension to stabilise green planning to enable green light optimal speed advice. The results from micro-simulation show a 7.8% improvement for stops and delay time over traditional adaptive control for Swarm, and 14.9% for Cooperative ImFlow. Adding planning stabilisation reduced the average perceived change for end users from 9.0–2.3%, without performance loss for the overall traffic flow. This shows the large potential of cooperative traffic control.
Starting Page	379
Ending Page	386
Page Count	8
ISSN	1751956X
Volume Number	11
e-ISSN	17519578
Issue Number	Issue 7, Sep (2017)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-its/11/7
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-its.2016.0268
Journal	IET Intelligent Transport Systems
Publisher Date	2017-06-02
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Adaptive Control Adaptive Control Algorithm Average Perceived Change Control System Analysis Control System Synthesis Cooperative Traffic Light Control Algorithm Delay Time Improvement Enhanced Queue Modelling Green Planning Stabilisation ImFlow Microsimulation Optimal Green Light Speed Penetration Rates Road Intersection Road Traffic Control Road Traffic System Control Self Adjusting Control System Stability Stability in Control Theory Stop Time Improvement SWARM Control Algorithm Design Synthesis Method Traffic Detection
Content Type	Text
Resource Type	Article
Subject	Law Transportation Environmental Science Mechanical Engineering

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