2 . 31 it should be noted that the high usage of the rail system and related capacity deficiencies is primarily a function of the very low bus speeds that will occur under this scenario , since the road speeds reported above also will severely reduce bus speeds 2 . 31要特别一提的是，在既定策略方案下，由于路面的行车速度将会下降，巴士的行车速度会极低，铁路系统将出现高使用量以及连带的不胜负荷情况。
Average network speed ; calculated as total passenger kilometres divided by total passenger hours . the cost of road - based freight transport ; the cost of charges and operating costs as a percentage of gdp . the computer aided sustainability evaluation tool ( caset ) 交通网平均速度;即各公共及私营的主要交通工具的平均行车速度，反映出乘客乘搭交通工具时的平均车速(以乘客行程总距离[公里]除以乘客行程时间[小时]计算) 。
With the development of high - speed transportation project and the enhancement of the traffic speed , it is important to improve the comfort in vehicle - driving . it is an effective way to increase the total length of superstructure of continuous rigid frame bridge 由于高速交通事业的发展和行车速度的提高，已将行车的舒适性提到了很重要的位置，尽量增大连续刚构桥上部结构的连续长度，有利于高速行车和提高行车舒适性。
2 . 35 the combination of capacity deficiencies and road speed reductions noted above indicate that acceptable levels of mobility will not be achieved without additional infrastructure and or new demand management policies under the 2016 do nothing high scenario 35基础设施不胜负荷以及行车速度减慢的情况，均显示2016年在既定策略的高增长方案下，若没有新的运输基建及/或新增的控制需求政策，客货运输流通情况将不可能达至可接受水平。
With the support of methodology and approaches pertaining to medicine , psychology and physiology , this research explores the correlation among speed , roadway alignment , environment and physiological and psychological element of driving behaviors on the basis of abundant data obtained from field study , which lays the foundation for further analysis of what represents a comfortable and safe situation and for the calibration of threshold value of coefficient of transverse force 本研究应用医学和心、生理学方面的理论方法和研究手段,通过大量的行车试验,寻找汽车行车速度、道路线形、道路环境与驾驶员行车心、生理需求的内在关系和规律。以此为基础,研究在山区双车道公路上行车,紧张与不紧张,安全与不安全的条件,研究横向力系数等的极限值。
