主要交通路线
Public vehicle, especially the impact of the big and middle buses, is 40% in the total traffic capacity in Lanzhou, which is becoming the principal and important section. So the public transport of regular time and route is chosen and analyzed.
兰州市区交通量构成中公共交通车辆占到40%,交通对环境的影响在很大程度上是公共交通造成的,其中大中型车辆的影响更加明显,所以选择定时定线公交系统进行分析。
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