Study On Reasonable Division And Coordinative Optimization Of Passenger Dedicated Line And Existing Railway

The question of reasonable division work and coordinates optimization about passenger dedicated line and existed railway is a complicated question of transportation organization optimization. With the construction of the passenger dedicated line, the function and structure of the railway transportation corridors are being perfected constantly, and the function and character of all lines will changed. So the division of work about passenger dedicated line and existed railway is reasonable or not has greater influence in those problems:the reasonable utilization of capability, the raise of freight trains speed, and the improvement of passengers'service on the transportation corridors. In order to give full play to the capacity of railway transportation corridors, and adapt to the high-speed development of national economic construction, and improve the people's living standard constantly, we must investigate and analyze the basic situation of passenger dedicated line and existed railway in detail, must optimize the division of work and coordination of the two lines scientifically and reasonably.On summarizing and analyzing the both domestic and abroad theory and method about the division work of passenger dedicated line and existed railway, combining the concrete conditions of Chinese passenger dedicated line. Thesis perfected the principle and method of division work about passenger dedicated line and existed railway. Regarding system engineering thought as guidelines, and surrounding with the division work, thesis researched the principle and method, and set up a division work model which optimization target include transportation cost, travelling speed, passenger service, and regular transportation organization. Thesis researched the influence on the transportation organization of existed railway after passenger dedicated line put into operation, and set up a coordinate optimization model and made it combined with division work model. Then we got a comprehensive model of division work and coordinate optimization model which is multi- level, multi-target and non-linear. Thesis chose a right algorithm to solve this model, and structured a relevant theoretical system about reasonable division work and coordinative optimization of passenger dedicated line and existed railway. The research of thesis included the following several respect mainly:(1) On the basic analysis of abroad transportation organization model and combining domestic reality, thesis analyzed transportation organization model and its characteristic of existed railway. Also analyzed the function and suitable condition of passenger dedicated line, and analyzed the problem of existed railway transportation organization. Secondary, analyzed and researched the probable transportation organization model and its feature and suitable condition of passenger dedicated line. At last, researched the similarities and dissimilarities between passenger dedicated line and existed railwav. brought up three probable models of passenger dedicated line.(2) On the basic of the two lines'transportation organization characteristic, according to raise the capacity and service quality of railway net, thesis analyzed the elements which influence the division work between passenger dedicated line and existed railwav. brought up the division principles which is conformed with national and railway net conditions.(3) According to the travel request of passenger dedicated line and existed railway, combining with the division principles, utilizing mathematical abstract theorem and optimization theory, it set up a reasonable division work model which use transportation cost, travelling speed, passenger service, and regular transportation organization as subject condition.(4) Analyzed the influence on existed railway after passenger dedicated line is put into operation, and set up a coordinated optimization model of division work by aiming at this problem. At the same time, combined the coordinated optimization model with reasonable division work model, and make use of mature ant colony algorithm to bring up a new Ant(1)～Ant(5) tactic of searching better division scheme.(5) Take Wuhan Guangzhou passenger dedicated line as background, adopted ACO algorithms to calculate the division scheme of Wuhan Guangzhou railway transportation corridor. The result demonstrated that the algorithms can receive reasonable division scheme, and verified that the model and algorithms are effective and suitable for use.Finally, thesis summarized the research work and results of the full paper, and proposed several innovative points and jobs proposed needing to further investigate in the some futures of the thesis.