An Improved General Bidirectional Progression Model for Arterial

Optimal control of arterial signals is critical for the effective operation of urban road network. With the goal of providing reasonable allocation of bidirectional green time while maximizing general bidirectional traffic progression along the arterial, this paper develops an improved general bidir...

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Bibliographic Details
Published in:Shanghai jiao tong da xue xue bao 2017-12, Vol.22 (6), p.697-704
Main Author: 郭亚娟 杨立才 郝慎学 郜军
Format: Article
Language:English
Subjects:
Architecture
Computer Science
Computer simulation
Constraint modelling
Electrical Engineering
Engineering
Life Sciences
Materials Science
Optimal control
Optimization
Queues
Traffic capacity
Traffic volume
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Summary:Optimal control of arterial signals is critical for the effective operation of urban road network. With the goal of providing reasonable allocation of bidirectional green time while maximizing general bidirectional traffic progression along the arterial, this paper develops an improved general bidirectional coordinated progression model for arterial based on Maxband model. In the model, a proportional coefficient of bidirectional bandwidth demands is introduced and calibrated by adopting average link queue occupancy. The calibration method takes full account of actual traffic volume and capacity of each link, which helps to provide optimal control performance. Additionally,new constraints are added into the model and enable the model with two features: it can automatically select two-way or one-way progression, and the involved intersection unit can be either one-phase-one-approach or bidirectional symmetric release mode. The results of extensive simulation studies indicate that the improved model outperforms existing methods, markedly increasing the utilization of available bidirectional green time.
ISSN:1007-1172
1995-8188
DOI:10.1007/s12204-017-1892-7