基于DEA模型的空中立交桥效益分析评价

Benefit analysis and evaluation of air overpass based on DEA model

针对不同地区空中立交桥的搭建效益不同,部分地区搭建效益较低等问题,基于采集到的相关实时数据,建立以总复杂度、小时风险、全天风险、小时流量、全天流量为5个评价指标的数据包络分析(DEA,data envelopment analysis)模型,并通过DEA中的C2R模型和超效率DEA模型对全国10个地区进行分析。结果表明,周口和长武空中立交桥的效益值达到最佳状态,可见此方法可作为评估不同地区空中立交桥效益的一种手段。

In order to solve the problems of diverse construction benefits of air overpasses in different regions and few construction benefits in some regions,based on the collected real-time data,a data envelopment analysis(DEA)model with five evaluation indexes of total complexity,hourly risk,all day risk,hourly flow and all day flow is established.The C2R model in DEA method is used to analyze 10 regions in China.The results show that the benefit values of Zhoukou and Changwu air overpass reach the best state,which shows that this method can be used as a means to evaluate the efficiency of air overpasses in different regions.