Study On Comprehensive Evaluation For Route Schemes Of Expressway

As one of the important problems to be solved for survey and design of highway,highway route scheme of comprehensive comparison and selection, is an important work ofhighway construction prophase decision global. Route scheme is reasonable or not, directlyrelated to the project status function, recovery efficiency, transportation efficiency, theexpected effect of the play, to the completion of the project can meet the national political,economic construction needs also has play a decisive role role. In the process of selectinghighway route scheme, involving all aspects of economy, society, environment and otherfactors, the situation is more complex, a set of scientific and reasonable evaluation index andevaluation method of optimization decision is particularly important. Therefore, study on theselection of reasonable evaluation index and scientific and reliable comprehensivecomparison method to select the optimal overall effect and the feasibility of the best routeplan in highway construction stage, has important significance.Based on the analysis of the concept, the highway line selection based control factors ofexpressway line selection and the basic principles of the system, combined with thecharacteristics of expressway line selection, comprehensive and based on the importance ofcombining qualitative index and quantitative index of combining the principle of setting upthe index system, from the point of view of hierarchical structure, based on the analysis ofhighway route effect of comprehensive plan index system, the comprehensive economic,technical, social, environmental and safety aspects, construct comprehensive, system,comprehensive multi factor, multi-level evaluation index system of highway route scheme.Then, the basic principle to follow the route scheme evaluation, the basic principles ofthe preferred route scheme closely, combined with the characteristics of route schemeevaluation and general requirements and procedures, based on review of the commonly usedmethod of route scheme on the objectivity of evaluation scheme considering route process andresults, explore the proposed evaluation of highway route scheme based on improved entropymethod, mathematical model was established for the evaluation of highway route scheme, andbased on the software platform to compile the corresponding computer program.Then, analyzes the steps and methods of expressway line selection, and with Yongan tothe Wuping Expressway in Fujian Province as the carrier, based on collecting index data on acomprehensive evaluation index system and the evaluation method of highway route schemeis proposed for the analysis of examples. Through the analysis of examples, from the3alternative route scheme of comprehensive than to select the optimal scheme to verify theconstruction of evaluation index system of the utility and the establishment of feasibleevaluation model.Finally, the related research and case analysis of the previous review, summarized themain achievements and conclusions of this paper and the problems for further study ofhighway route scheme and comprehensive than the development prospect of selected methodswere you look.