城市核心区互通立交方案评价体系构建与决策模型优化研究

Research on Construction of Evaluation System and Optimization of Decision-Making Model for Interchange Schemes in Urban Core Areas

摘要:

针对现有互通式立交方案评价体系在城市核心区应用中存在的指标量化难、与工程决策需求错位等问题，系统剖析城市核心区立交设计的核心矛盾，基于“需求—约束—功能”协同机理，重构包含功能—实施—经济—环境4个维度16项指标的综合评价体系，并提出适配工程决策逻辑的“刚性约束筛选+两阶段AHP-TOPSIS”优化评价模型。以某城市核心区立交工程为案例进行实证检验。结果表明，该体系可有效量化强约束下立交方案的综合性能，解决了既有评价方法主观性强、指标与实际脱节的问题，为城市核心区立交方案科学决策提供了可靠的量化工具。

Abstract:

To address the challenges of difficult indicator quantification and misalignment with engineering decision-making needs in the application of existing interchange scheme evaluation systems in urban core areas, the core contradictions in interchange design in urban core areas are systematically analyzed. Based on a “demand-constraint-function” synergy mechanism, a comprehensive evaluation system including 16 indicators across four dimensions of function, implementation, economy and environment is reconstructed. And an optimization evaluation model of “rigid constraint screening + two-stage AHP-TOPSIS” adapted to the engineering decision-making logic is proposed. An interchange project in an urban core area is used as a case study for empirical validation. Results show that the system can effectively quantify the comprehensive performance of interchange schemes under strong constraints, which solves the problems of strong subjectivity and disconnection between indicators and reality in the existing evaluation methods, providing a reliable quantitative tool for the scientific decision-making of interchange schemes in the urban core area.