The Research On The Technology And Application Of Highway Construction Feasibility Study

Feasibility study is a key work in the preliminary phase of highway construction project. It deals with a series of forcasting technique, project technique and assessment technique. With the rapid development of highway construction, the feasibility study has been making great advances.Starting with the significances, contents and methods of feasibility study, this dissertation conducted a thorough theoretical study and application analysis on forcasting technique and economic evaluation technique of highway feasibility study based on up-to-date achievements.There are five chapters involved in the dissertation. The first one simply introduced the conception and effect of feasibility study,and firstly put forward the notion of environmental admissibility by analyzing the contents of feasibility study, which included constructive necessity, economical rationality, technical feasibility and implementary possibility. After summarizing the contents and measures of highway feasibility study,the chapter 2 presented a flowchart of feasibility study work. The chapter 3 demonstrated the theory of traffic demand forcasting by analyzing the mechanism of generation of traffic demand; analyzed the applicability of the general traffic demand forcasting method and the"four phase method"by contrasting their charicteristics; and discussed all kinds of allocation models. Based on analyzing and summarizing the existing traffic demand forcasting techniques,the chapter 4 established traffic forcasting models for feasibility study of the Hunan province highway construction project. The important points of this chapter are to study the model and algorithm of multipath probabilistic method and capacity restraint method,and to analyze the impedance function of transportation. Finally, the chapter 5 discussed the theoretic and method of economic appraisal. An example was gived to explain economic appraisal method.This paper summed up the experiences of the Hunan province highway feasibility study, and developed the computer-integrated system used for traffic forcasting and economic appraisal for highway construction project.