Research On Key Techniques Of Potential Line Set For High-speed Railway Line Planning And System Development

Line planning is main matter of the organization of railway passenger transportation. It can reflect the business strategy and service quality of passenger transport. Line planning is very hard to solve and optimize directly. Potential line set can help to solve line planning efficiently, and also be beneficial to line planning optimization. So, key technologies of potential line set are deeply researched in this article.According to the current research, definitions of potential line set elements are given in this paper. Generation and application methods about potential line set are deeply researched and its evaluation system is constructed as well. The major topics are as follows:1. Current research on potential line set is analyzed and summarized. Potential line set is defined, and it includes seven elements. They are train OD, path, speed, formation, frequency, recommended level, effectives between train and flow.2. Using the method—"Analyze element and then synthesize systematically", the generation of potential line set is researched. Firstly study three issues (train mode, classification of passenger transport nodes and railway network path search). Solve train origin, destination and path, consider flow, and generate train stops, frequency, formation, speed, effectiveness and recommended level, then form complete potential line set.3. Potential line set application is researched and generation method of initial train plan using potential line set is given out. Nine evaluation indexes of potential line set are built.4. Based on the research above, potential line set computer management system with clear structure levels and desired functions is designed and developed by using Visual Studio2008C#. Then use Beijing-Shanghai high-speed railway and with related railways as case background, solve the corresponding potential line set and initial recommended train plan, and get a good result.