摘要
放宽条件定点集结模式下,考虑到同一去向后编列车可能丢线,先编列车在满足出发条件基础上,将部分本应随先编列车出发的车辆编组到后编列车,使得后编列车刚好满足出发条件。针对该相邻出发列车车流分配问题,建立了描述车辆在调车场集结过程的批到达批服务排队模型,通过与不分配车流方案进行对比,分析了相邻出发列车进行车流分配对车辆集编排队系统性能的影响。结果表明:分配车流方案较不分配车流方案,车辆平均集结队长和集结延误时间较长,列车正点发车概率增加,出发列车平均编成辆数有所降低,一昼夜发送车流量增加,最优最小编成辆数随到达强度增加而增加。
In the time-fixed assembly mode with softened conditions,considering that the later train in the same direction may lose the path,the earlier train that has met departure conditions will have some of its cars that should have departed with the earlier train grouped into the later train so that the later train could depart punctually.In response to the problem of car assignment between adjacent departure trains,an assembly queuing model with batch arrival and batch service that described the assembly process of cars in the shunting yard was buolt.The influence of car assignment between adjacent departure trains on the performance of car assembly and queuing system was analyzed by comparing with the case of no car assignment.The results show that the car assignment causes longer average queue length and assembly delay,but improves the probability of departure train punctuality,decreases the average departure train length,enhances the traffic volume in one day,and increases the optimal minimum number of cars with the increase of arriving intensity.
作者
李静
帅斌
许旻昊
朱伟波
何春燕
LI Jing;SHUAI Bin;XU Minhao;ZHU Weibo;HE Chunyan(School of Transportation&Logistics,Southwest Jiaotong University,Chengdu,610031,China)
出处
《铁道学报》
EI
CAS
CSCD
北大核心
2020年第7期1-9,共9页
Journal of the China Railway Society
基金
国家自然科学基金(71173177)。
关键词
铁路运输
车流分配
排队系统
批到达
批服务
最小编成辆数
railway transportation
car assignment
queuing system
batch arrivals
batch service
minimum number of cars
