01476740

Component

https://doi.org/10.3141/2356-11

http://scholar.google.com...urth&publication_year=2013

Decentralized, actuated traffic signal control has many advantages, but it lacks mechanisms for coordinating with other signals along an arterial. When an intersection along an arterial is near or at oversaturation, coordination can play an important role in preserving and utilizing capacity by preventing spillback and starvation. Rules that can be added to a base of decentralized, clock-free actuated control are proposed for managing queues during periods of oversaturation. These rules are part of a larger framework for developing logic that will make arterial traffic signals self-organizing rather than organized around a common signal cycle. Features of the proposed logic include green truncation in case of intersection spillback, early green and double realization for left-turn phases prone to pocket spillback resulting from a limited turn-bay length, and dynamic coordination for groups of signals spaced too close together to hold a normal cycle’s queue. With dynamic coordination, green waves are scheduled for each cycle following the critical intersection’s critical arterial through phase, with noncritical intersections adjusting offsets based on queue counts and a logic. The proposed dynamic coordination logic allows temporary spillback at upstream intersections to prevent starvation at the critical intersection and temporary starvation at downstream intersections to prevent spillback at the critical intersection. Simulation tests using a benchmark network showed 45% less delay than standard coordinated control and 4% less than an optimizing control method designed for oversaturated arterials. Simulation tests on two realistic networks also showed delay reductions of 8% and 35% compared with coordinated control.

01497498

13-3218

English

0000-0002-1265-981X

pp 92–99

2013

Transportation Research Record: Journal of the Transportation Research Board

9780309286824

Print

Figures (6) ; References (11) ; Tables (2)

Arterial highways; Logic; Queuing; Saturation flow; Signalized intersections; Traffic oversaturation; Traffic signal control systems; Traffic signal phases; Traffic signal timing

Highways; Operations and Traffic Management; Safety and Human Factors; I73: Traffic Control

TRIS, TRB, ATRI

Feb 5 2013 12:39PM

• Arterial Queue Spillback Detection and Signal Control Based on Connected Vehicle Technology
• Coordinated Optimization Model for Signal Timings of Full Continuous Flow Intersections
• Design and Evaluation of an Intelligent Dilemma-Zone Protection System for a High-Speed Rural Intersection
• Dynamic Programming Approach for Arterial Signal Optimization
• Effective Coordinated Optimization Model for Transit Priority Control Under Arterial Progression
• Effects of Metered Entry Volume on an Oversaturated Network with Dynamic Signal Timing
• Estimating Queue Length Under Connected Vehicle Technology: Using Probe Vehicle, Loop Detector, and Fused Data
• Evaluation of Microwave Radar Vehicle Detectors at a Signalized Intersection Under Adverse Weather Conditions
• Experiences with Adaptive Signal Control in Germany
• Multiregime Adaptive Signal Control for Congested Urban Roadway Networks
• Performance Diagnosis Tool for Arterial Traffic Signals
• Statistical Study of the Impact of Adaptive Traffic Signal Control on Traffic and Transit Performance
• Transit Priority Strategies for Multiple Routes Under Headway-Based Operations