| Autor: |
Yuki Sugiyama, Satoshi Yukawa, Shin-ichi Tadaki, Macoto Kikuchi, Akihiro Shibata, Akihiro Nakayama |
| Rok vydání: |
2016 |
| Předmět: |
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| Zdroj: |
Traffic and Granular Flow '15 ISBN: 9783319334813 |
| Popis: |
The optimal velocity (OV) model was proposed to explain the physical mechanism of jam formation. The emergence of a traffic jam can be understood as a kind of dynamical phase transition. We confirmed the physical mechanism by two experiments. In this study, we investigate the relation between experimental results and observations of real traffic based on the OV model. In the OV model, the critical density at which a traffic jam occurs is determined by the OV function. The OV function is estimated from data of headway and velocity obtained by the experiments. Then, we propose a scaling rule of the OV function from the experiments to real traffic. Using this rule, we obtain critical density as a function of a single parameter. The obtained critical density is consistent with the observed values for highway traffic. From this result, we conclude that the jam formation in real traffic is explained by the same mechanism as the circuit experiments. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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