| The transportation modernization is the infrastructure guarantee of social economic modernization. To realize social economic modernization we must first bring about a transportation modernization. The road is an important subsystem in the large-scale transportation systems, and the research of transportation modernization must begin from that of the road modernization. To study the development of road modernization, first we must carry out scientific investigation and assessment of present road condition as well as the demand. This is the foundation of road planning and construction. Only scientific and accurate appraisal can cause the planning and construction satisfies the social economic demand and is moderately in advance.In order to guarantee smooth modernization of mass social economic systems, it is necessary to depend on the modernization advancement of mass social systems, and carry on scientific, systematic, and complete assessment of the road development, so as to effectively grasp the advancement of road modernization, and furthermore provide powerful foundation for formulating the highway development plan.Therefore, it is imperative that a modern and systematic, scientific and complete appraisal system be established on the basis of mass social systems; that strict and reasonable appraisal methodology be adopted.This article first combines the system theory with the modernized theory, according to which it analyzes in different levels and from different angles the modernization theory, so as to establish the systematic, scientific and complete theory framework of road modernization research in Tianjin. The author provides massive detailed data to accurately describe the present condition of highway network in Tianjin, and analyzes whether the present development of highway network in Tianjin can satisfy the social economic need, as well as whether it is ahead of time. The article has corrected the improper conclusion about present highway network drawn from scattered data and other factors long ago. According to the theory system framework of Tianjin road modernization, by using the system theory and approaches the article builds the structure of modernized appraisal index system of Tianjin road. In selecting different levels of index, basic model of the Tianjin road modernized appraisal system is achieved. Analysis is made through using Gray Forecasting Method, Elastic Coefficient Method, Regression analysis, and Smooth Law of Index, to determine the need of road modernization in Tianjin. Through using analogy and Logit models, measurement model in different level of the assessment is determined and values and standard values in corresponding years drawn. Putting it into the basic model of Tianjin road modernization appraisal system, complete road appraisal system of road modernization in Tianjin are obtained.By using the DEA technology, the neural network technology the AHP, appraisal model of validity of Tianjin road modernization is established. Thus a comprehensive analysis and assessment of development is fulfilled, so as to provide reference for the social economic modernization and the transportation modernization.
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