highway capacity

The drivers' actual behaviors in order to guarantee the traffic safety in driving were analyzed. Through that it puts forward the concept of variable deceleration time, and structure a theoretical highway capacity model of single lane based on variable deceleration time.

通过对驾驶员在行驶过程中为保证行车安全的实际驾驶行为进行分析，提出了可变减速时间的概念，并以此构建了基于可变减速时间的单车道通行能力理论模型；

At present, too much emphasis was laid on the scenic highway capacity, the inadequate concepts of environmental protection and the landscape designs. As a result, natural and human landscape was severely damaged and there exists huge security risk.

而目前我国诸多旅游公路过多强调通行能力，环保和景观设计理念不足，环境协调性差，甚至对周围优美的自然、人文景观造成严重破坏，同时存在潜在的事故隐患。

In order to meet definite environmental quality criterion and achieve the highway capacity, reducing vehicle pollutant emission factor is took into account mainly, and its calculation model is concluded.

考虑满足环境空气质量标准和保证路段的通行能力，本文主要考虑降低机动车污染物排放因子，并得出了相应的计算模型。