钦州学院学报
欽州學院學報
흠주학원학보
JOURNAL OF QINZHOU UNIVERSITY
2011年
3期
43-47
,共5页
行人最大速度%行人流%格子气模型%双向行人流%临界密度
行人最大速度%行人流%格子氣模型%雙嚮行人流%臨界密度
행인최대속도%행인류%격자기모형%쌍향행인류%림계밀도
the maximum velocity of pedestrians%pedestrian flow%lattice gas model%bidirectional flow%critical density
应用改进的格子气模型(即将行人的最大速度扩展到大于1)研究行人的最大速度对过道中单向和双向行人流的影响。模拟结果显示:最大速度为5时所对应基本图的临界密度跟实验值比较符合,说明该扩展是必要的;在一定范围内随着行人最大速度的增大道路的整体通行能力增强同时临界密度减小;双向行人流的时空斑图显示行人最大速度的增大加快了拥堵的形成过程(即缩短了行人从局部拥堵演化为完全拥堵的时间)。
應用改進的格子氣模型(即將行人的最大速度擴展到大于1)研究行人的最大速度對過道中單嚮和雙嚮行人流的影響。模擬結果顯示:最大速度為5時所對應基本圖的臨界密度跟實驗值比較符閤,說明該擴展是必要的;在一定範圍內隨著行人最大速度的增大道路的整體通行能力增彊同時臨界密度減小;雙嚮行人流的時空斑圖顯示行人最大速度的增大加快瞭擁堵的形成過程(即縮短瞭行人從跼部擁堵縯化為完全擁堵的時間)。
응용개진적격자기모형(즉장행인적최대속도확전도대우1)연구행인적최대속도대과도중단향화쌍향행인류적영향。모의결과현시:최대속도위5시소대응기본도적림계밀도근실험치비교부합,설명해확전시필요적;재일정범위내수착행인최대속도적증대도로적정체통행능력증강동시림계밀도감소;쌍향행인류적시공반도현시행인최대속도적증대가쾌료옹도적형성과정(즉축단료행인종국부옹도연화위완전옹도적시간)。
In the present paper, upgraded lattice gas model in which the maximum velocity of pedestrians is extended beyond one is used to study the effect of the maximum velocity of pedestrians on unidirectional and bidirectional flow pedestrian flow. It is shown by the simulation : When the vmax is 5, the critical density of the corresponding fundamental diagram is in comparatively good agreement with empirical results. With the increase of Vmax within a certain scale, while the overall traffic capacity increa- ses, the critical density decreases. The space-time spot diagram of the bidirectional flow indicates that the increase of Vmax accelerates the forming process of traffic congestion, which means that the span from partial traffic congestion to complete traffic congestion has been reduced.