基于数据包络分析方法的地下道路交通工程设计方案评价

发布时间：2018-06-07 03:51

本文选题：交通工程 + 综合效率　；参考：《长安大学学报(自然科学版)》2017年03期

【摘要】：为了评价地下道路交通工程设计方案的优劣性,建立了以安全、技术、经济、运行效率和环境为导向的地下道路交通工程设计方案评价体系;引入数据包络分析(data envelopment analysis,DEA)方法,分析其对地下道路交通工程设计评价的适应性;根据DEA方法对输入输出指标同向性的要求,选取地下道路的冲突点个数、建设投资费用、交通延误作为评价的输入指标,将设计通行能力和照度作为评价的输出指标,并充分考虑指标与评价对象的关联性和易量化性;最后以西安市创业新大陆地下遂道项目为例,用选取的指标对DEA方法进行验证。利用DEA方法模型中的规模收益可变的BCC模型(由Banker、Charnes和Cooper提出),得到10个地下道路交通工程设计方案的综合效率评价值,进而对这10个设计方案的技术效率和规模效率进行分析,指出各设计方案DEA无效的原因,并给出部分方案的改进方向和建议。研究结果表明:相较于规模收益不变的CCR模型(由Charnes、Cooper和Rhodes提出),规模收益可变的BCC模型更适合评价地下道路交通工程设计方案,得到地下道路不同工程设计方案的综合效率评价值;当有多个设计方案的综合效率值为1时,能给出这些方案的优劣排序,还可计算出各DEA无效方案的输入冗余率和输出亏空率,指出各设计方案的改进方向和步长,避免投入产出要素的过剩或不足。
[Abstract]:In order to evaluate the merits and demerits of underground road traffic engineering design scheme, an evaluation system of underground road traffic engineering design scheme based on safety, technology, economy, operation efficiency and environment is established, and data envelopment analysis method is introduced. According to the requirement of input and output index of DEA method, the number of conflict points of underground road, construction investment cost and traffic delay are selected as the input index of the evaluation. The design capacity and illuminance are taken as the output index of the evaluation, and the relevance and quantification between the indexes and the evaluation objects are fully considered. Finally, the DEA method is verified by the selected indexes with the example of Xi'an pioneering underground tunnel project in the new continent. By using the BCC model with variable scale income in the DEA model (proposed by Bankerman Charnes and Cooper), the comprehensive efficiency evaluation values of 10 underground road traffic engineering design schemes are obtained, and the technical efficiency and scale efficiency of the 10 design schemes are analyzed. This paper points out the reasons why the DEA of each design scheme is invalid, and gives some improvement directions and suggestions. The results show that the BCC model with variable scale income is more suitable to evaluate the design scheme of underground road traffic than the CCR model with constant scale income (proposed by Charnesn Cooper and Rhodes). The comprehensive efficiency evaluation values of different design schemes for underground roads are obtained, and when the comprehensive efficiency value of multiple design schemes is 1, the order of advantages and disadvantages of these schemes can be given. The input redundancy rate and output deficit rate of each DEA invalid scheme can also be calculated, and the improvement direction and step size of each design scheme can be pointed out to avoid the excess or deficiency of input-output elements.
【作者单位】：长安大学公路学院;西安市政设计研究院有限公司;
【基金】：“十二五”国家科技支撑计划项目(2014BAG05B04)
【分类号】：U491

【相似文献】