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20 October 2022 On-ramp metering of urban expressway based on hierarchical fuzzy logic
Jia Liu, Hongyan Gao
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Proceedings Volume 12350, 6th International Workshop on Advanced Algorithms and Control Engineering (IWAACE 2022); 123500E (2022) https://doi.org/10.1117/12.2652746
Event: 6th International Workshop on Advanced Algorithms and Control Engineering (IWAACE 2022), 2022, Qingdao, China
Abstract
In order to alleviate the traffic congestion of expressway, an on-ramp metering algorithm for urban expressway based on hierarchical fuzzy logic is proposed. The hierarchical fuzzy control algorithm consists of three layers and reduces fuzzy rules effectively. The speed, density of vehicles on the upstream and downstream at the ramp mergence and the ramp queue length are taken as its input variables, and the ramp metering rate deviation is taken as its output variable. VISSIM combined with MATLAB is used to carry out simulation experiment. The proposed hierarchical fuzzy control algorithm is compared with PI-ALINEA and two-input fuzzy control algorithm in the simulation experiment. The experimental results show that the hierarchical fuzzy control algorithm can effectively increase the mainline speed and reduce the queue length of vehicles on the ramp.
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Jia Liu and Hongyan Gao "On-ramp metering of urban expressway based on hierarchical fuzzy logic", Proc. SPIE 12350, 6th International Workshop on Advanced Algorithms and Control Engineering (IWAACE 2022), 123500E (20 October 2022); https://doi.org/10.1117/12.2652746
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KEYWORDS
Fuzzy logic
Fuzzy systems
Control systems
Roads
Control systems design
MATLAB
Device simulation
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