Considering visual analysis, traffic safety in some sense means that divers can clearly see the road alignment make up of planar and vertical alignments.
从视觉分析的角度出发，为保证行车安全，应尽可能让驾驶员清晰地看到由平面与纵断线形构成的道路线形。
Considering visual analysis, traffic safety in some sense means that divers can clearly see the road alignment make up of planar and vertical alignments.
从视觉分析的角度出发，为保证行车安全，应尽可能让驾驶员清晰地看到由平面与纵断线形构成的道路线形。
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