【摘要】 针对一类路段输入流量具有时变特性的路段行程时间进行讨论,所讨论的路段行程时间与路段流量具有指数函数关系.因无法直接求出这类方程关于路段行程时间的解析解,故对指数函数按级数进行展开,得出了路段行程时间以及输出流量随输入流量变化的关系.最后用数值试验对所得结论进行了仿真,结论令人满意.更多还原

【Abstract】 The link travel time corresponding to time-varied inflows, which has an exponential function relation with the link traffic flow, is disscussed. Because analytic solution of link travel time can not be found directly, the analysis of the 1-order series expansion of exponential function is used to get the solution. The relationship between outflows and inflows is given out. The numerical simulation demonstrates that the conclusion is satisfied.更多还原