Evaluation On Social Benefit Of Regional Expressway Network

The construction and development of expressway have made great achievement in China during past 20 years. The system of modern road and transportation representative by expressway has promoted the development of economy effectively in this period .as well as efficient service system. As the planning of national expressway implementing, the planning and construction of regional expressway are proceeding in many provinces. The development of has been marching in another high level stage. With the expressway forming network and large scale, the social benefit of which has appearing increasingly. It is of important theory value and directive significance by studying on social benefit of regional expressway network. which is favorable for making planning of expressway network and advancing the harmony sustainable development of transportation and social economy.So far as researches on social benefit of expressway are concerned, most of them concentrate on single expressway project. The evaluation theory and method on social benefit of regional expressway are still in debate. From the viewpoint of system analysis, considering the relationship between the development of expressway and social economy, this paper analyses connotation and relative factor on social benefit of regional express network., based which a reasonable scientific evaluation index system has been put forward with Some indexes quantified such as emergency response time-saving. Meanwhile, compared with a number of evaluation methods, this paper selects DEA model and factor analysis as the evaluation method of social benefit of regional expressway network. Finally, an example of Sichuan province has been illustrated. This paper has come to the conclusion that the evaluation method accord with the practice of regional expressway network, which is valuable for adjust the rate of regional expressway construction. At last, by comparing the growth mode between east area and the west, proposals for developing style of freeway in west area have been put forward facing current situation.