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Technologies 2018, 6(3), 71; https://doi.org/10.3390/technologies6030071

Dynamic Evaluation on the Traffic State of an Urban Gated Community by Opening the Micro-Inter-Road Network

1
Mechanical Engineering School, Shanghai University of Engineering Science, Shanghai 201620, China
2
Department of Mechanical Systems Engineering, Yamagata University, Yamagata 990-8560, Japan
3
School of Aeronautic Science and Engineering, Beihang University, Beijing 100191, China
*
Author to whom correspondence should be addressed.
Received: 15 June 2018 / Revised: 25 July 2018 / Accepted: 26 July 2018 / Published: 31 July 2018
(This article belongs to the Special Issue Smart Systems)
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Abstract

The opening of a gated community to expand the micro-road network in an urban traffic system is an importance research topic related to urban congestion. To satisfy the demands of opening an early choosing case, this paper proposes a comprehensive selection framework on qualified communities and their appropriate opening times by describing the traffic state at the boundary road network accurately. The traffic entropy model and fuzzy c-means (FCM) method are used in this paper. In the framework, a new opening evaluation entropy model is built using basic theory of the thermodynamic traffic entropy method. The traffic state entropy values of the boundary road network and entropy production are calculated to determinate the opening time. In addition, a specific fuzzy range evaluation standard at a preset gated community is drawn with an FCM algorithm to verify the opening determination. A case study based on the traffic information in a simulated gated community in Shanghai is evaluated and proves that the findings of opening evaluation are in accordance with the actual situation. It is found that the micro-inter-road network of a gated community should be opened as the entropy value reaches 2.5. As the travel time is less than 20 s, the correlation between the opening entropy value and the journey delay time exhibits a good linear correlation, which indicates smooth traffic flow. View Full-Text
Keywords: urban gated community; traffic entropy model; FCM clustering; micro-road network urban gated community; traffic entropy model; FCM clustering; micro-road network
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Dong, L.; Rinoshika, A.; Tang, Z. Dynamic Evaluation on the Traffic State of an Urban Gated Community by Opening the Micro-Inter-Road Network. Technologies 2018, 6, 71.

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