车辆密度 [交] vehicle density
[交] traffic density
- 两车道上车辆密度的不对称性对交通流有重要的影响。
The nonsymmetry of car density on two lanes has important influence on the traffic flow. - 如果车辆密度大幅高于上述数字,则车流模式开始出现不稳定现象。
If the traffic density increases much above that, the flow pattern begins to become unstable. - 在美国,道路最佳使用效率的理想车辆密度大约是每车道英里50辆车。
In America, the optimum density for the best use of road space is around 50 vehicles per lane-mile .