Energy-efficient Timetable Optimization for Urban Rail Transit Considering Difference of Peak and Off-peak Hours
Reducing energy consumption is crucial for developing green,low-carbon,and sustainable rail transit.Based on the principle of"running fast during peak hours for transport capacity assurance,running slowly during off-peak hours for energy consumption reduction",this paper proposes an energy-efficient timetable optimization method based on different time criteria during peak and off-peak hours.First,an optimization model considering the characteristics of passenger service demand was developed based on the negative correlation between train running time and traction energy consumption.The objective was to reduce train traction energy consumption.Then,to address the uneven train service issue resulting from different time criteria during the transit period between peak and off-peak hours,this study developed an optimization model for train service to minimize the variability in train arrival intervals.The empirical analysis was conducted for Fuzhou Metro Line 1.The results demonstrate that the energy-efficient timetable based on different time criteria achieved a 12.56%reduction in traction energy consumption,while maintaining the transport capacity and the number of rolling stock unchanged.The proposed method is practical and valuable,providing operational managers with methods for energy-efficient timetabling.
urban trafficenergy-efficient timetabledifferent time criteriatraction energy consumptiontrain service equilibrium
NETL
NSTL
万方数据
