城市轴线通常是指一种在城市中起空间结构驾驭作用的线形要素。
Urban axis is usually referred to a kind of linear key element, which could control spatial structure in a city.
通过定性和定量分析，提出影响驾驶工作负荷度的平面线形要素。
Through qualitative and quantitative analysis, the traffic safety factors of horizontal curve are proposed.
隧道设计轴线提供的只是线形要素，每点的空间坐标需要自行求取。
The designed tunnel axis is given with some references and the points' coordinates need to be calculated.
影响公路线形优劣的因素是多方面的，在路廊设计完成后进行要素设计时，就交通安全，行车心理，线形美学等几方面，进行了初步的分析。
Many factors influence the quality of highway alignment, elementary research is given in this paper about traffic security, traffic psychology and alignment esthetics, etc.
影响公路线形优劣的因素是多方面的，在路廊设计完成后进行要素设计时，就交通安全，行车心理，线形美学等几方面，进行了初步的分析。
Many factors influence the quality of highway alignment, elementary research is given in this paper about traffic security, traffic psychology and alignment esthetics, etc.
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