Abstract: Research Reviews of Socio-Economic Effect Evaluation for VMS Project on FreewayAbstract:VMS is one of the important parts of ITS. The paper accounts for home and abroad researches on the evaluation of VMS project，points out the main problems in the past researches，analyzes socio一economic benefits of VMS project，and sets up a calculation model.Based on the analysis of different methods，the paper chooses cost一benefit analysis to evaluate socio-economic effect of VMS. In order to evaluate the socio-economic effect of VMS, the control strategy of VMS project should be analyzed firstly, and then technology assessment of VMS should be put up. The former is a design basis and the latter is a supporting technique for evaluating the socio-economic effect of VMS, so the VMS’s social benefits are presented through the effect of its technology. It will show a desirable direction for study to identify its effect and social benefits，especially to evaluate the synthetic efficiency between it and other part of ITS,with putting VMS into
the situation of traffic network system.

Key words: VMS, socio-economic impact, evaluation

摘要： 可变信息标志(VMS)是ITS信息提供系统的重要组成部分.本文系统评述了国内外在VMS项目评价方面的主要研究进展，指出了已往研究中存在的主要问题，进行了VMS项目社会经济效益分析.给出了计算模型;并在分析不同评价方法的基础上，选用费用效益分析方法来评价VMS的社会经济影响.本文提出对高速公路VMS项目社会经济影响评价，应首先分析VMS项目的控制策略，然后进行VMS技术评价，因为这两个环节是VMS社会经济影响评价的设计基拙和技术基拙,VMS的社会效益是通过它的技术实施效果体现出来的.将VMS置于交通网络系统环境下识别其影响和社会效益，尤其是综合评价VMS与ITS信息提供系统中其他组成部分的合成效果，将是未来一个值得探索的研究方向.

关键词: 可变信息标志, 社会经济影响, 评价