以已运营的某市西外环高速公路(设计速度100 km/h)为例,对小车限速由100 km/h调整至120 km/h进行设计符合性评价,结合现场检查、事故统计等,对不符合要求的指标如不设超高的圆曲线最小半径、直线长度、竖曲线最小半径等进行验算和评价,指出不适合提速的路段,并提出改进措施.%This paper, with certain servicing west outer ring expressway ( designed speed limit 100 km/h) as example, made design conformity assessment when adjust the speed limit from 100 km/h to 120 km/h. Combined with on-site inspection, accident statistics, etc. , this paper carried out calculation and evaluation to indicators not meet with requirements, such as min. radius of the round curve with no height limit, the length of the straight line, the minimum radius of the curve and so on, road sections not suitable for speed raising is pointed out and improvement measures proposed.
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