基于修正熵权的未成网城市轨道交通绩效评价

Corrected Entropy Based Operation Performance Evaluation about Urban Rail Transportation Non-networks System

定期对未成网城市轨道交通系统进行绩效评价,有助于探索轨道交通符合市场规律的最佳运输组织模式.在考虑未成网城市轨道交通系统特征的基础上,建立绩效评价指标体系,采用平移修正后的距离熵计算最终分析系数,引入信息损失可容忍度将修正带来的数据信息损失控制在合理范围内.以昆明城市轨道交通系统为基础的案例研究表明,建立的指标体系可较好地描述城市轨道交通运营初期特征,列车运行图的调整将大幅影响城市轨道交通的运营绩效.平移修正后的距离熵可以克服熵权法的固有缺陷,保证所有指标均对绩效评价起作用,降低人为因素带来的不确定性,提高绩效评价的可靠性.

The regular urban rail transit system performance evaluation process has important function on obtaining the best operation mode. In this paper, we establish an urban transit non- network system performance evaluation system after analyzing its characteristics. Then translation corrected distance entropy based method is applied to calculate the coefficients, the information loss tolerance coefficient is used to control the information loss within a reasonable range. Kunming Urban Rail Transit System case study shows that the established indexes are suitable to describe the metro＇s operation characteristics, train operation diagram adjustments would significantly affect the operating performance. Translation corrected based distance entropy can overcome the inherent deficiencies of ordinary entropy method, reduce the uncertainty caused by human evaluation and improve the reliability of performance evaluation.