Critical Density of Experimental Traffic Jam

Shin-ichi Tadaki (), Macoto Kikuchi, Minoru Fukui, Akihiro Nakayama, Katsuhiro Nishinari, Akihiro Shibata, Yuki Sugiyama, Taturu Yosida and Satoshi Yukawa
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Shin-ichi Tadaki: Saga University, Department of Information Science
Macoto Kikuchi: Osaka University, Cybermedia Center
Minoru Fukui: Nakanihon Automotive College
Akihiro Nakayama: Meijo University, Faculty of Science and Technology
Katsuhiro Nishinari: The University of Tokyo, Research Center for Advanced Science & Technology
Akihiro Shibata: High Energy Accelerator Research Organization (KEK) & Graduate University for Advanced Studies (Sokendai), Computing Research Center
Yuki Sugiyama: Nagoya University, Department of Complex Systems Science
Taturu Yosida: Nakanihon Automotive College
Satoshi Yukawa: Osaka University, Department of Earth and Space Science

A chapter in Traffic and Granular Flow '13, 2015, pp 505-511 from Springer

Abstract: Abstract In a previous experiment, we have demonstrated that a traffic jam emerges without any bottleneck at a certain high density. In the present work, we performed an indoor circuit experiment in Nagoya Dome and estimated the critical density. The circuit is large (314 m in circumference) compared to the previous experiment. Positions of cars were observed in 0.16 m resolution. We performed 19 sessions by changing the number of cars from 10 to 40. We found that jammed flow was realized in high density while free flow in low density. We also found the indication of metastability at an intermediate density. The critical density is estimated by analyzing the density-flow relation. The critical density locates between 0. 08 and 0. 09 m−1. It is consistent with that observed in real expressways.

Keywords: Critical Density; Traffic Jams; Jam Flow; Real Expressways; Flow-density Relation (search for similar items in EconPapers)
Date: 2015
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Persistent link: https://EconPapers.repec.org/RePEc:spr:sprchp:978-3-319-10629-8_56

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DOI: 10.1007/978-3-319-10629-8_56

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