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Optimum maintenance scheduling for traction substations guarantees reliable and efficient operation of electrical railways. Reliability-based optimum scheduling models are respectively proposed through the analysis of the structure and maintenance cost of individual components in traction substations in this study. An individual components-based heuristic algorithm for solving the proposed models...
A hierarchical network and traffic assignment model is developed for multimodal transportation networks to meet the prediction of large-scale transportation demand in this paper. In the proposed model, the city center and transportation terminal of different modes are defined as central nodes and transfer nodes respectively to characterize travel behavior of passengers. The generalized cost function...
Based on the 2008 intercity transport statistical data, this paper analyzes the trend of multimodal transport market of China. By investigating the social, economic, and land-use data, the authors explore the structural rationality of passenger and freight transportation. Some policy measures have been put forward to optimize the operations of China's intercity transport network. It concludes that...
During the 29th Olympic Games, the Organizing Committee proposed and applied a series of traffic control measures. This paper first introduces the traffic control measures, and then analyzes their effects on road traffic structure and volume. It resulted that the ratio of non-motorized vehicles and buses are directly proportional to the intensity of traffic control, while the traffic volume and V/C...
Under conditions of mixed traffic, pedestrians' twice crossing (PTC) is one of the effective maneuvers for signalized intersections with particularly large size to enhance traffic safety and efficiency by decreasing conflicts and ambiguity of pedestrians and motorized vehicles. However, it will lead to diminishing of vehicles throughput if the signal phase for PTC is not properly designed. In this...
Transfer organization of public transportation terminals has played a more important role in urban transportation management and planning. The micro-simulation software, VISSIM, is designed to model the pedestrian transfer in the Xizhimen Public Transportation Terminal (Beijing, China) in this paper. Four problems are found in the case study: severe disturbance between pedestrians and traffic flows,...
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