作业帮英语翻译The purpose of this study is to evaluate the actual high
来源：学生作业帮 编辑：作业帮 分类：英语作业 时间：2024/10/06 08:56:20
英语翻译
The purpose of this study is to evaluate the actual highway geometric design
properly,and propose a well-balanced design policy especially considering the drivers
perception and behavior.In this paper,after classification of all the design elements,the new
concept of 'reversely calculated speed' as an evaluator of road alignment is introduced and
examined.The analysis of the 'reversely calculated speed' for actual alignments on
Expressways in Japan shows the drivers' perception of physical limitation given by road
alignment.Then the actual operating vehicle speed is estimated and analyzed using database
of vehicle detectors.Using the five-minutes mean speed,with only one passenger car,
observed by detectors in the median lane on more than 7,000 km networks of Expressways in
Japan,the speed running absolutely independent can be assumed as an 'operating speed' (free
speed) reasonably.At last,the values of operating speed are evaluated with highway design
elements such as curvature of horizontal radius and vertical grade.
The purpose of this study is to evaluate the actual highway geometric design
properly,and propose a well-balanced design policy especially considering the drivers
perception and behavior.In this paper,after classification of all the design elements,the new
concept of 'reversely calculated speed' as an evaluator of road alignment is introduced and
examined.The analysis of the 'reversely calculated speed' for actual alignments on
Expressways in Japan shows the drivers' perception of physical limitation given by road
alignment.Then the actual operating vehicle speed is estimated and analyzed using database
of vehicle detectors.Using the five-minutes mean speed,with only one passenger car,
observed by detectors in the median lane on more than 7,000 km networks of Expressways in
Japan,the speed running absolutely independent can be assumed as an 'operating speed' (free
speed) reasonably.At last,the values of operating speed are evaluated with highway design
elements such as curvature of horizontal radius and vertical grade.
研究的目的是为了正确评估真实情况下高速公路几何设计,并提出良好的均衡设计策略,特别是要把驾驶者知觉和行为考虑在内.在本文中,在将所有设计要素分类的基础上,引入了“逆向计算速度”这个新概念作为道路线形的评价并加以检验.对日本高速公路的实际线形的“逆向计算速度”分析显示了由道路线形给出的驾驶者知觉的身体极限.然后利用车辆探测器数据库估计分析了车辆实际操作速度.对于五分钟平均速度,仅有一名乘客的情况,由探测器在超过七千公里的日本高速公路网分隔带车道上的观察数据,有理由假定完全独立行使速度可以作为一个“操作速度(自由速度)”.最后,通过高速公路设计要素例如水平半径、垂直梯度来估计操作速度的值.
好累啊,多给点分吧...
好累啊,多给点分吧...
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