Study on the Selection of Interchange Schemes in Complex Mountain Areas Based on Fuzzy Evaluation Method
Interchange scheme selection is one of the key points anddifficultiesin the design of mountainous expressways.In practical engineering,most of the interchange design process in mountainous areas still adopts qualitative analysis and comparison,which still has a large gap with the comprehensive and scientific selection and comparison.Taking Pengxi Interchange,a typical interchange-style interchange of Cangnan-Taishun Expressway of mountainous south Zhejiang as an example,a special-shaped interchange scheme and a general interchange scheme are proposed and multiple schemes are compared,based on the local social and natural conditions and engineering characteristics.The fuzzy comprehensive evaluation method is used to quantitatively evaluate and analyze each scheme.Through qualitative analysis and comparison and fuzzy evaluation quantification comparison,the single-sided diamond + U-turn ramp scheme is finally selected as the recommended scheme,which provides a new idea for the interchange selection and design under the restricted conditions of Zhejiang mountain expressway.
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