The speed-density diagrams of heterogeneous traffic containing pedestrians, bicycles and powered two-wheelers in shared spaces

J. H. Chen, T. C. Lee

研究成果: Conference contribution

摘要

Urban design is shifting towards space sharing to reduce the dominance of vehicles on roads. With this concept, it would not be uncommon to see pedestrians and vehicles mixed in traffic. This study aims to investigate the relationship between the traffic speed and density in shared spaces. The trajectories of road users in a mixed flow containing pedestrians, bicycles and powered two-wheelers were tracked and recorded. The speeds and densities of them were measured in microscopic approach in a two-dimensional manner due to the extremely different kinetic characteristics between pedestrians and vehicles. The density was calculated using the number of road users in the alert area of certain transport mode; the speed was calculated using the displacement per second. It is found that in the speed-density diagrams, the low speed and low density combinations occurred frequently, which were eccentric comparing to the conventional traffic flow theories. The reasons for such speed-density scattering patterns were discussed.

原文English
主出版物標題Proceedings of the 19th International Conference of Hong Kong Society for Transportation Studies, HKSTS 2014 - Transportation and Infrastructure
編輯Z. Leng, Y. H. Wang
發行者Hong Kong Society for Transportation Studies Limited
頁面297-304
頁數8
ISBN(電子)9789881581433
出版狀態Published - 2014
事件19th International Conference of Hong Kong Society for Transportation Studies: Transportation and Infrastructure, HKSTS 2014 - Hong Kong, China
持續時間: 2014 十二月 132014 十二月 15

出版系列

名字Proceedings of the 19th International Conference of Hong Kong Society for Transportation Studies, HKSTS 2014 - Transportation and Infrastructure

Other

Other19th International Conference of Hong Kong Society for Transportation Studies: Transportation and Infrastructure, HKSTS 2014
國家China
城市Hong Kong
期間14-12-1314-12-15

All Science Journal Classification (ASJC) codes

  • Transportation

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