Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci., XLII-2/W7, 1275-1282, 2017
https://doi.org/10.5194/isprs-archives-XLII-2-W7-1275-2017
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 4.0 License.
 
14 Sep 2017
THE IMPACT OF LARGE URBAN STRUCTURAL ELEMENTS ON TRAFFIC FLOW   A CASE STUDY OF DANWEI AND XIAOQU IN SHANGHAI
H. Lyu1, L. Ding1,2, H. Fan3, and L. Meng1 1TUM, Chair of Cartography, TUM, 80333 Munich, Germany
2Group of Applied Geoinformatics, University of Augsburg, 86159 Augsburg, Germany
3Geographisches Institut, Universität Heidelberg, 69120 Heidelberg, Germany
Keywords: Danwei and Xiaoqu, road network, betweenness centrality, floating car data, traffic flow Abstract. Danwei (working unit) and Xiaoqu (residential community) are two typical and unique structural urban elements in China. The interior roads of Danwei and Xiaoqu are usually not accessible for the public. Recently, there is a call for opening these interior roads to the public to improve road network structure and optimize traffic flow. In this paper we investigate the impact of Danwei and Xiaoqu on their neighbouring traffic quantitatively. By taking into consideration of origins and destinations (ODs) distributions and route selection behaviours (e.g., shortest paths), we propose an extended betweenness centrality to investigate the traffic flow in two scenarios 1) the interior roads of Danwei and Xiaoqu are excluded from urban road network, 2) the interior roads are integrated into road network. A Danwei and a Xiaoqu in Shanghai are used as the study area. The preliminary results show the feasibility of our extended betweenness centrality in investigating the traffic flow patterns and reveal the quantitative changes of the traffic flow after opening interior roads.
Conference paper (PDF, 2413 KB)


Citation: Lyu, H., Ding, L., Fan, H., and Meng, L.: THE IMPACT OF LARGE URBAN STRUCTURAL ELEMENTS ON TRAFFIC FLOW   A CASE STUDY OF DANWEI AND XIAOQU IN SHANGHAI, Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci., XLII-2/W7, 1275-1282, https://doi.org/10.5194/isprs-archives-XLII-2-W7-1275-2017, 2017.

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