| Summary: | 博士 === 國立交通大學 === 土木工程學系 === 99 === The track alignment design including horizontal and vertical sections is the basic work of railway. It is always planned by experienced engineers. The spreadsheet and computer-aided mapping are the major tools for the track alignment design. These traditional methods can meet the design criteria, but when the design factors and the modifications must be satisfied at the same time, the process is always complicated and redundant.
Through the development of computer technology, a lot of complicated calculation can be finished by computer. We discussed the feasibility of decision support system (DSS) to improve the efficiency and quality of track alignment design. The building information modeling (BIM) is mainly applied on the generation and management of building data. It utilizes the object-oriented concept to increase the efficiency of information management in the building life cycle. The track alignment data also has the topographic relation that is similar to the building. There is a much more closer relation between the topological, sharp and position of track entities than the building components.
This study discusses the feasibility of applying a real-time, dynamic, three-dimensional DSS of building information model to design the alignment, and compared the traditional alignment method with the DSS method in order to find out the differences, and analyzed the precision by using the alignment data of east and west main tracks of Qidu Switchyard of Taiwan Railways Administration. Moreover, it proved that the DSS can simplify the track alignment design, increases the abilities of computer-aided design and automation, and greatly shorten the design period.
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