【摘要】 以交通流流体力学理论为基础 ,应用近似分析 ,用准冲击波近似替代具有连续时空性质的冲击波 ,建立准冲击波模拟模型 ,形象刻画出冲击波在信号交叉口处的传递变化情况 ;对车流在信号交叉口处的排队过程 (拥挤—消散过程 )进行了较为深入的模拟研究 ,使运行分析的结果随外界道路交通条件的变化而变化 ,具有较强的自适应性 ,更符合交通流的实际运行状况。更多还原

【Abstract】 On the basis of the Hydrodynamic Theory of Traffic Flow,the quasi shock waves(QSWS) models are established to describe the propagation of QSWS at signalized intersection by applying an approximate analysis,substituting the discrete QSWS for the continuous ones.Based on the above,the queuing processes are simulated in details, which makes the simulation changing adaptively with the traffic conditions and the results much closer to the practical traffic flow circumstances.更多还原