標題: | Self-organization phenomenon and the edge of chaos in traffic flow dynamics |
作者: | Lan, LW Lin, FY Wang, YP 運輸與物流管理系 註:原交通所+運管所 Department of Transportation and Logistics Management |
關鍵字: | recurrent congestion;chaos;self-organization;cellular automaton |
公開日期: | 2003 |
摘要: | According to the complexity theory, a self-organization phenomenon might exist when the phase shifts from order (non-congested) to chaos (congested) state within a system. In this paper, cellular automaton (CA) traffic simulator is applied to investigate the self-organization forming process as the traffic density grows. Real traffic data are used to examine whether the power law, an indicator of self-organization phenomenon, exists or not. Our empirical evidence on a two-lane freeway shows that self-organization phenomenon appears when the density exceeds 45% (or 60 pcu/km); however, the edge of chaos is at a density level of 33.8% (or 45 pcu/km), which should be the starting control point (e.g., ramp metering) for recurrent congestion. |
URI: | http://hdl.handle.net/11536/18481 |
ISSN: | 1348-5393 |
期刊: | PROCEEDINGS OF THE EASTERN ASIA SOCIETY FOR TRANSPORTATION STUDIES, Vol 4, Nos 1 AND 2 |
Volume: | 4 |
Issue: | 1-2 |
起始頁: | 574 |
結束頁: | 582 |
顯示於類別: | 會議論文 |