基于投影寻踪的市政工程项目方案评价

Project Evaluation of Municipal Engineering Project Based on Projection Pursuit

摘要: 针对市政工程项目方案评价过程中存在复杂性、差异性以及决策者有限理性的特点，本文运用投影寻踪方法建立了基于投影寻踪的市政工程项目方案评价模型，利用实数编码加速遗传算法实现数据的快速处理及计算，缩短了传统的“权重–评价”的两阶段评价过程，通过投影目标向量的最优解中的数值对备选方案进行评价、比选。并以某城市改建主干道工程方案为例运用该模型进行实际应用，结果表明，该模型对市政工程项目方案进行评价可行、有效。

Abstract: Aiming at the complexity, difference and limited rationality of decision makers in the process evaluation of municipal engineering projects, this paper uses projection pursuit scheme to establish a project evaluation model for municipal engineering projects based on projection pursuit. The model is based on matlab software, using real-coded accelerated genetic algorithm to achieve rapid processing and calculation of data, shortening the traditional two-stage evaluation process of “weight-evaluation”, by selecting the numerical value in the optimal solution of the projection target vector. The program is evaluated and compared. Taking the urban main road reconstruction project as an example, the model is applied to the actual application. The results show that the model is feasible and effective for the evaluation of municipal engineering projects.