Abstract：Research purposes ： Chinese railway construction develops rapidly with large scale and high standard, so it is necessary to research and develop the CAD software for route selection based on 3D data, taking vector landform diagram as reference for the purpose of satisfying the requirements of construction design. In this way，we can achieve the aim of enhancing production efficiency and improving design quality.
Research conclusions ： Based on the analyses of survey and design flows of new railway lines at different grades, CAD for railway line are presented and researches are done on the key technologies of establishing digital ground model， interaction of the graph with the data, the interactions of track plane section, track longitudinal section and track lateral section, interaction design of railway II line, track scheme management and real 3D visuals of design. The application results show the CAD based on these technologies can be generalized and applied in the construction design.
王玉泽. 新建铁路线路计算机辅助设计研究与开发[J]. 铁道工程学报, 2008, 25(7): 14-17.
WANG Yu-ze. Research and Development of Computer Aided Design for New Railway Line. 铁道工程学报, 2008, 25(7): 14-17.
2008, Vol. 25 
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