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Integrated Optimization Method of Urban Road Traffic Data Detector Layout

Author: ZhaoYuQiao
Tutor: ChenHong
School: Chang'an University
Course: Traffic Engineering
Keywords: Urban roads Intelligent Transport Systems Traffic Detectors Optimize the layout Genetic Algorithms
CLC: U495
Type: Master's thesis
Year: 2011
Downloads: 79
Quote: 1
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Abstract


With intelligent transport systems in the rapid development of China, as an intelligent transport system based on real-time traffic information for city transportation system highlights its importance. Domestic and international studies have shown that the traffic data collected by traffic detectors Intelligent Transport Systems (ITS) is the key to the efficient operation and traffic data accuracy and timeliness of the detector space density and specific position relationship. In recent years, China, in cities are considering detector optimized layout problem, due to the urban road network density, the ideal situation in a section of laid detector of this scale required the laying cost It is amazing. Therefore, access to both at the same time given the accuracy and integrity of traffic data, but also in the road network as little as possible arrangement of the detector, it is very important for traffic data acquisition system. In this paper, based on the understanding of the current development of domestic and international urban traffic information collection system, the first of the traffic detector works, performance, applicable emplaced analysis, according to the actual situation starting from the need to achieve the goal Select the appropriate detection equipment. Cloth point method commonly used in domestic and international traffic detector optimization basic principles as the basis for a detailed analysis of the characteristics and applicable conditions of the various methods. Urban roads into urban expressway and urban road two categories, and discuss the optimization of detector layout method. Combined with the characteristics of the main road or freeway travel time estimates based optimization method and the use of the SimCity microscopic simulation software VISSIM4.10 actual road network traffic detector optimized layout, the best-laid pitch and detector for most urban expressway emplaced number; emplacing method detector based on genetic algorithm optimization; laid when the results obtained by this method does not meet the pre-set in order to estimate the OD matrix on the basis of the analysis of the various emplacing method, the estimate of the amount of road traffic scale, through sections of similarity analysis excluded similar sections, thereby reducing the number of laid sections. And use engineering calculation software MATLAB instance validation the detector optimized layout. Eventually the entire city road network to include urban expressway and the general urban roads detector optimized layout scheme.

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CLC: > Transportation > Road transport > Technical management of traffic engineering and road transport > Computer applications in road transport and highway projects
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