冬奥会京张高铁列车时刻表优化研究

Study on Optimization of Beijing-Zhangjiakou High-speed Railway Schedule for Winter Olympics

大型体育赛事使得新增冬奥会客流数量较大,既有京张高铁列车时刻表无法满足乘客出行需求,在考虑绝对安全原则下,建立了1个线性模型来解决乘客新增需求列车短缺问题.该模型在既有列车时刻表中加入新增列车,在满足乘客出行需求的前提下尽量减少新增列车旅行时间并降低对原列车时刻表影响.针对模型特点提出了1种优化后的模拟退火算法,选取2022年冬奥会比赛期间的京张高铁对模型进行数值分析,结果表明,优化后的列车时刻表既能满足冬奥会乘客出行需求,又减少了新增列车总运营时间,并且对原有列车时刻表影响控制在合理范围内,验证了算法的有效性,在实际工程中有较好的应用效果.

Large sports events lead to a large number of additional passenger flow for the Winter Olympic Games and the existing Beijing-Zhangjiakou high-speed train schedule cannot meet the passenger travel demand.Under the principle of absolute safety,a linear model is established to solve the problem of train shortage of new passenger demand.The model adds new trains into the existing train schedule to reduce the travel time of new trains and reduce the impact on the original train schedule on the premise of meeting the travel needs of passengers.According to the characteristics of the model is optimized by a simulated annealing algorithm is proposed,the selection of Beijing during the 2022 Olympics Zhang high-speed train numerical analysis was carried out on the model,the results show that the optimized the train schedules can not only meet the demand of winter Olympics passengers,and reduced the total travel time new trains,and the impact on the original schedule control in a reasonable range,The effectiveness of the algorithm is verified and it has good application effect in practical engineering.