Volume 39 Issue 6
Dec.  2021
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Article Navigation >  Journal of Transport Information and Safety  > 2021  >  39(6): 100-107
HE Weitao, WANG Yandong, GONG Yanpeng, ZHAO Jian. An Evaluation Study of Network Optimization through Connecting Dead-end-roads[J]. Journal of Transport Information and Safety, 2021, 39(6): 100-107. doi: 10.3963/j.jssn.1674-4861.2021.06.012
Citation: HE Weitao, WANG Yandong, GONG Yanpeng, ZHAO Jian. An Evaluation Study of Network Optimization through Connecting Dead-end-roads[J]. Journal of Transport Information and Safety, 2021, 39(6): 100-107. doi: 10.3963/j.jssn.1674-4861.2021.06.012
shu

An Evaluation Study of Network Optimization through Connecting Dead-end-roads

doi: 10.3963/j.jssn.1674-4861.2021.06.012
  • 1.

    State Key Laboratory of Information Engineering in Surveying, Mapping and Remote Sensing, Wuhan University, Wuhan 430079, China

  • 2.

    Beijing Institute of Surveying and Mapping, Beijing 100038, China

  • Received Date: 2021-06-10
    Available Online: 2022-01-12
    Abstract
  • Dead-end-roads(DERs)are widespread in any city, and their presence can reduce the usage of roads and lead to traffic congestions. However, there are limited quantitative methods to assess the impacts of DERs. A new method is proposed to assess their impacts. At the level of road structure, community detection is used to classify the road network, and analyze the community which greatly affected by responded DERs. At the level of traffic assignment, whether a dead-end-road is opening, two simulations are performed in the community mentioned above. On this basis, the percentage change of the average value in roads' speeds is selected as an evaluation index. Then, this method is varified by a case study of the road network in Chaoyang District, Beijing. The results shows that: ①Under the travel demand of 900 pcu, the mean value of indices is less than 0.6%, indicating that opening DERs in the low-load area cannot bring obvious optimization. ② Under three groups of large travel demand, the mean value of indices of cross-community DERs(3.097%, 1.833%, and 2.633%)are higher than which of intra-community DERs(2.077%, 1.785%, and 2.041%). The opening of cross-community road sections should be given priority in municipal projects.

     

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