Fuzzy Theory Of Gravity And Its Application To Railway Location Design Of Comprehensive Evaluation

Railway location is a railway construction important component, scheme comparison of railway location is in the design of strong policy work, route selection is correct or not, directly related to satisfy national political, economic and defense of the line requirements, affect the line design quality, engineering cost, construction condition and the operation effect.Therefore, this work must be thorough and actual, according to the different stage of design, make good investigation and study, to collect sufficient data, a systematic plan for comprehensive comparison and selection.This paper aims to apply fuzzy theory of gravity railway design scheme comparison and selection, and the establishment of a line selection system.Fuzzy theory of gravity for the first time in combination with line schemes.Firstly, through to the domestic railway route selection research, summed up the problem that exists at present, put forward the research significance and the research content of.Secondly, pointed out the evaluation principle and meaning, and the system is divided into technology, economy, environment, society four index and the establishment of the overall system structure diagram, on four indicators were discussed in detail.In third, the existing evaluation methods are discussed and analyzed, a wide choice of application of fuzzy comprehensive evaluation for railway line scheme selection theory, which focuses on the application, fuzzy theory of gravity method.Fourth, the paper introduced the circuit schemes after the basics, the function of the system design and structure design are analyzed, establishing the structure function design, and completed the modeling.Fifth, this paper introduces the engineering example to verify and detect system.Railway location system is used to two options to select the best scheme.Based on the engineering practice, proved the system function practical.The system development method based on object oriented, with Visual Studio2003as development platform, using Visual Basic as the system development language, has realized the data directly input or call data to a two function, the calculated results are accurate, visual interface is user-friendly, high efficiency.Scheme comparison of railway location system development, it is a huge systematic project, is a gradual process, requires both a solid theoretical foundation, but also have profound computer programming skills.Prospect of line schemes for the future development, the establishment of an intelligent system has become an irresistible trend of history.