Accurate and efficient design of transfer connections is crucial to the broad adoption of periodic train timetables in China's complex and extensive high-speed rail network. Transfer time acceptance varies among passengers based on distance,yet many studies use fixed connection time windows,leading to mismatches between actual and acceptable transfer times,thus capping service level enhancements. To address this issue,a high-speed train timetable optimization model that considers variable connection windows was developed,leveraging the Event-Activity network and the Periodic Event Scheduling Problem (PESP). This model enables synchronized decisions on train connection choices,OD transfer allocations,and timing optimizations. The model introduces variables for OD transfer allocations,allowing flexibility in serving specific passenger flows during optimization. Moreover,variable transfer connection time windows were determined dynamically based on the reasonable transfer time ranges for passenger ODs,and the model aimed to minimize the deviation from ideal service levels. In case studies involving the Beijing-Shanghai high-speed line,significant improvements were shown in transfer frequency and timing as compared to fixed-window approaches,thus proving the effectiveness.
关键词
高速铁路/周期列车运行图/周期事件规划问题/换乘接续/可变接续时间窗
Key words
high-speed railway/periodic train timetables/periodic event scheduling problem (PESP)/transfer connection/variable transfer time window
维普
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