Simulation-based Optimization Study Of Regional Rail Transit Hub Facility And Equipment Configuration

At present,China’s railroad mileage reaches 146,300 km,including 38,000 km of highspeed rail,and the national railroad network density is 152.3 km / 10,000 km2,which is the country with the longest high-speed rail mileage,the highest transport density and the most complex network operation scenario in the world.With the increasing number of high-speed rail lines,the number of passengers using the hub gradually increases,putting forward higher requirements for the smoothness and comfort of the hub interchange connection.Therefore,China has put forward a series of guidelines around the construction of hubs,aiming to improve the service quality of passenger hubs.At the same time the use of surplus capacity to run mass transit type periodic trains,although it will increase the difficulty of operational management,but can significantly reduce the cost of construction and organization and management of transport enterprises,to protect passengers green travel at the same time,the advantages of the railroad stock assets,to achieve a win-win situation,therefore the number of regional integrated hub nodes running mass transit type periodic trains will gradually increase and become more widely distributed in the network.In this context,the study of the rationality of the configuration of facilities and equipment in regional rail transportation hubs with a large number of mass transit type periodic trains has implications for the transformation of existing hubs and the design of future hubs.In this paper,we collect and study domestic and international literature,analyze the information of lines with bus-oriented trains,give the characteristics of mass transit type periodic trains passenger flow and stations for regional rail transit hubs with mass transit type periodic trains,analyze the interface between stations and other transportation modes,and propose the characteristics and development direction of integrated regional rail transit hubs.Secondly,the facility and equipment configuration scheme of regional rail transit hubs operating mass transit type periodic trains is studied,and the facility and equipment configuration evaluation system is constructed from three aspects: facility and equipment service capacity evaluation,pedestrian walking fluency evaluation and passenger travel comfort evaluation,and the weights of each index are obtained based on factor analysis method,and the material element topologizable model is selected as the evaluation method.Finally,taking Chengdu West Station hub as an example,the simulation value of each index is obtained by using Any Logic simulation software,and the correlation between the simulation value and the values of different evaluation levels is calculated to determine the evaluation level of Chengdu West Station hub,and the configuration optimization plan of facilities and equipment is proposed for the problems arising in the operation of the hub.