互通式立体交叉是高速公路的重要组成部分，而互通式立交减速车道和分流点又是互通式交线形设计的重要指标。
Interchange is an important part of expressway, and the deceleration lane of interchanges and the diversion point are important indexes of alignment design of interchanges.
本文以某高速公路的数据为基础，提出了以运行车速为基础的双指标高速公路线形评价方法。
This paper established a two-indexes freeway alignment evaluation model, based on the data of a freeway.
提出采用改进德尔菲法建立高速公路线形安全评价综合指标体系。
The modified Delphi method is proposed to build the evaluation index system of liner safety of expressways.
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