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Modeling and simulation of high-speed passenger train movements in the rail line 被引量:3
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作者 曹成铉 许琰 李克平 《Chinese Physics B》 SCIE EI CAS CSCD 2013年第6期239-245,共7页
In this paper, we propose a new formula of the real-time minimum safety headway based on the relative velocity of consecutive trains and present a dynamic model of high-speed passenger train movements in the rail line... In this paper, we propose a new formula of the real-time minimum safety headway based on the relative velocity of consecutive trains and present a dynamic model of high-speed passenger train movements in the rail line based on the proposed formula of the minimum safety headway. Moreover, we provide the control strategies of the high-speed passenger train operations based on the proposed formula of the real-time minimum safety headway and the dynamic model of highspeed passenger train movements. The simulation results demonstrate that the proposed control strategies of the passenger train operations can greatly reduce the delay propagation in the high-speed rail line when a random delay occurs. 展开更多
关键词 SIMULATION dynamic model control strategies of train movements high-speed passenger train
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A Distributionally Robust Optimization Method for Passenger Flow Control Strategy and Train Scheduling on an Urban Rail Transit Line 被引量:4
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作者 Yahan Lu Lixing Yang +4 位作者 Kai Yang Ziyou Gao Housheng Zhou Fanting Meng Jianguo Qi 《Engineering》 SCIE EI CAS 2022年第5期202-220,共19页
Regular coronavirus disease 2019(COVID-19)epidemic prevention and control have raised new require-ments that necessitate operation-strategy innovation in urban rail transit.To alleviate increasingly seri-ous congestio... Regular coronavirus disease 2019(COVID-19)epidemic prevention and control have raised new require-ments that necessitate operation-strategy innovation in urban rail transit.To alleviate increasingly seri-ous congestion and further reduce the risk of cross-infection,a novel two-stage distributionally robust optimization(DRO)model is explicitly constructed,in which the probability distribution of stochastic scenarios is only partially known in advance.In the proposed model,the mean-conditional value-at-risk(CVaR)criterion is employed to obtain a tradeoff between the expected number of waiting passen-gers and the risk of congestion on an urban rail transit line.The relationship between the proposed DRO model and the traditional two-stage stochastic programming(SP)model is also depicted.Furthermore,to overcome the obstacle of model solvability resulting from imprecise probability distributions,a discrepancy-based ambiguity set is used to transform the robust counterpart into its computationally tractable form.A hybrid algorithm that combines a local search algorithm with a mixed-integer linear programming(MILP)solver is developed to improve the computational efficiency of large-scale instances.Finally,a series of numerical examples with real-world operation data are executed to validate the pro-posed approaches. 展开更多
关键词 passenger flow control train scheduling Distributionally robust optimization Stochastic and dynamic passenger demand Ambiguity set
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A simulation model for estimating train and passenger delays in large-scale rail transit networks 被引量:5
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作者 江志彬 李锋 +1 位作者 徐瑞华 高鹏 《Journal of Central South University》 SCIE EI CAS 2012年第12期3603-3613,共11页
A simulation model was proposed to investigate the relationship between train delays and passenger delays and to predict the dynamic passenger distribution in a large-scale rail transit network. It was assumed that th... A simulation model was proposed to investigate the relationship between train delays and passenger delays and to predict the dynamic passenger distribution in a large-scale rail transit network. It was assumed that the time varying original-destination demand and passenger path choice probability were given. Passengers were assumed not to change their destinations and travel paths after delay occurs. CapaciW constraints of train and queue rules of alighting and boarding were taken into account. By using the time-driven simulation, the states of passengers, trains and other facilities in the network were updated every time step. The proposed methodology was also tested in a real network, for demonstration. The results reveal that short train delay does not necessarily result in passenger delays, while, on the contrary, some passengers may get benefits from the short delay. However, large initial train delay may result in not only knock-on train and passenger delays along the same line, but also the passenger delays across the entire rail transit network. 展开更多
关键词 delay simulation passenger delay train delay rail transit network TIMETABLE
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Last train timetable optimization for metro network to maximize the passenger accessibility over the end-of-service period 被引量:1
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作者 Fang Wen Yun Bai +2 位作者 Xin Zhang Yao Chen Ninghai Li 《Railway Sciences》 2023年第2期273-288,共16页
Purpose-This study aims to improve the passenger accessibility of passenger demands in the end-ofoperation period.Design/methodology/approach-A mixed integer nonlinear programming model for last train timetable optim... Purpose-This study aims to improve the passenger accessibility of passenger demands in the end-ofoperation period.Design/methodology/approach-A mixed integer nonlinear programming model for last train timetable optimization of the metro was proposed considering the constraints such as the maximum headway,the minimum headway and the latest end-of-operation time.The objective of the model is to maximize the number of reachable passengers in the end-of-operation period.A solution method based on a preset train service is proposed,which significantly reduces the variables of deciding train services in the original model and reformulates it into a mixed integer linear programming model.Findings-The results of the case study of Wuhan Metro show that the solution method can obtain highquality solutions in a shorter time;and the shorter the time interval of passenger flow data,the more obvious the advantage of solution speed;after optimization,the number of passengers reaching the destination among the passengers who need to take the last train during the end-of-operation period can be increased by 10%.Originality/value-Existing research results only consider the passengers who take the last train.Compared with previous research,considering the overall passenger demand during the end-of-operation period can make more passengers arrive at their destination.Appropriately delaying the end-of-operation time can increase the proportion of passengers who can reach the destination in the metro network,but due to the decrease in passenger demand,postponing the end-of-operation time has a bottleneck in increasing the proportion of passengers who can reach the destination. 展开更多
关键词 Urban rail transit Last train of metro Timetable optimization End-of-operation period passenger demand OD reachability
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Dynamic train dwell time forecasting:a hybrid approach to address the influence of passenger flow fluctuations
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作者 Zishuai Pang Liwen Wang +2 位作者 Shengjie Wang Li Li Qiyuan Peng 《Railway Engineering Science》 2023年第4期351-369,共19页
Train timetables and operations are defined by the train running time in sections,dwell time at stations,and headways between trains.Accurate estimation of these factors is essential to decision-making for train delay... Train timetables and operations are defined by the train running time in sections,dwell time at stations,and headways between trains.Accurate estimation of these factors is essential to decision-making for train delay reduction,train dispatching,and station capacity estimation.In the present study,we aim to propose a train dwell time model based on an averaging mechanism and dynamic updating to address the challenges in the train dwell time prediction problem(e.g.,dynamics over time,heavy-tailed distribution of data,and spatiotemporal relationships of factors)for real-time train dispatching.The averaging mechanism in the present study is based on multiple state-of-the-art base predictors,enabling the proposed model to integrate the advantages of the base predictors in addressing the challenges in terms of data attributes and data distributions.Then,considering the influence of passenger flow on train dwell time,we use a dynamic updating method based on exponential smoothing to improve the performance of the proposed method by considering the real-time passenger amount fluctuations(e.g.,passenger soars in peak hours or passenger plunges during regular periods).We conduct experiments with the train operation data and passenger flow data from the Chinese high-speed railway line.The results show that due to the advantages over the base predictors,the averaging mechanism can more accurately predict the dwell time at stations than its counterparts for different prediction horizons regarding predictive errors and variances.Further,the experimental results show that dynamic smoothing can significantly improve the accuracy of the proposed model during passenger amount changes,i.e.,15.4%and 15.5%corresponding to the mean absolute error and root mean square error,respectively.Based on the proposed predictor,a feature importance analysis shows that the planned dwell time and arrival delay are the two most important factors to dwell time.However,planned time has positive influences,whereas arrival delay has negative influences. 展开更多
关键词 train operations Dwell time passenger flow Averaging mechanism Dynamic smoothing
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Technical Feasibility Study of Passenger Rail Service along the West Route between Las Vegas and Los Angeles
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作者 Hualiang (Harry) Teng Boniphace Kutela 《Journal of Transportation Technologies》 2023年第4期746-755,共10页
The study evaluates the feasibility of running passenger train service from Las Vegas, NV on the Union Pacific Railroad (UPRR), to Barstow, on the Burlington Northern Santa Fe (BNSF) track, to Mojave on UPRR track aga... The study evaluates the feasibility of running passenger train service from Las Vegas, NV on the Union Pacific Railroad (UPRR), to Barstow, on the Burlington Northern Santa Fe (BNSF) track, to Mojave on UPRR track again, and to Lancaster connecting Metrolink to their destinations in Southern California. In this study, the railroad infrastructure was inventoried and issues related to running the passenger service were identified. Passenger train operation was evaluated based on the Rail Traffic Controller (RTC) simulation model. The performance measures of passenger trains including travel time, overall delay and average speed are analyzed. The uncertainty in freight flow and its impact on providing the passenger service is addressed by conducting a sensitivity analysis. The conclusion is that the existing railroad infrastructure is sufficient to provide a passenger train service from Las Vegas to Los Angeles. From an operational perspective, the passenger train is not expected to influence freight trains’ performance on the existing railroads. When freight train flows are increased to 50%, the influence of passenger train service on the freight operation is still minimal. This study recommends restoring a platform at the Las Vegas Station. At the Mojave Station, special care should be given on running the passenger trains where there is no direct railroad connection from BNSF to UPRR. Platforms and walkways require construction at the Lancaster Station for transferring passengers between the Metrolink trains and X-Train. Transferring the passenger train at this station involves stopping the train on mainline and coordinating the operations between different railroads. 展开更多
关键词 passenger train Service Railroad Operation RTC Simulation Model train Performance Sensitivity Analysis
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Train Vehicle Structure Design from the Perspective of Evacuation 被引量:1
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作者 Hanzhao Qiu Weining Fang 《Chinese Journal of Mechanical Engineering》 SCIE EI CAS CSCD 2019年第5期157-169,共13页
The safety of trains,a highly efficient mode of transportation,has attracted significant attention.In the vehicle structure design of a train,the evaluation of the passenger evacuation time is necessary.The establishm... The safety of trains,a highly efficient mode of transportation,has attracted significant attention.In the vehicle structure design of a train,the evaluation of the passenger evacuation time is necessary.The establishment of a simulation model is the fastest,most convenient,and practical way to achieve this goal.However,few scholars have focused on the reliability of a passenger train evacuation simulation model.This paper proposes a new validation method based on dynamic time warping and multidimensional scaling.The proposed method validates the dynamic process of a simulation model,provides statistical results,and can be used for small-sample scenarios such as a train evacuation scenario.The results of a case study indicate that the proposed method is an effective and quantitative approach to the validation of simulation models in a dynamic process.Thus,this paper describes the influence of the train structure size on an evacuation based on the results of simulation experiments.The structural size factors include the door width,aisle width,and seat pitch.The experiment results indicate that a wide aisle and reasonable seat pitch can promote a proper evacuation.In addition,a normal train door width has no effect on an evacuation. 展开更多
关键词 Simulation passenger train EVACUATION Structural SIZE VALIDATION
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An Algorithm for the Optimal Matching Speeds of Pass enger and Freight Trains in Mixed Operations
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作者 刘澜 《Journal of Modern Transportation》 1999年第1期96-101,共6页
This paper models the calculation of the optimal matching speeds of passenger and freight trains with various stage control methods for speed in mixed operations, presents a algorithm for the solution and justifies ... This paper models the calculation of the optimal matching speeds of passenger and freight trains with various stage control methods for speed in mixed operations, presents a algorithm for the solution and justifies it with a practical example. 展开更多
关键词 MATCHING SPEEDS passenger trainS FREIGHT trainS models ALGORITHM
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Optimization method of urban rail train operational plan based on O-D time-varying demand 被引量:1
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作者 Feng Shi Xian Tu Shuo Zhao 《Railway Sciences》 2022年第1期148-166,共19页
Purpose–Under the constraints of given passenger service level and coupling travel demand with train departure time,this study optimizes the train operational plan in an urban rail corridor to minimize the numbers of... Purpose–Under the constraints of given passenger service level and coupling travel demand with train departure time,this study optimizes the train operational plan in an urban rail corridor to minimize the numbers of train trips and rolling stocks considering the time-varying demand of urban rail passenger flow.Design/methodology/approach–The authors optimize the train operational plan in a special network layout,i.e.an urban rail corridor with dead-end terminal yard,by decomposing it into two sub-problems:train timetable optimization and rolling stock circulation optimization.As for train timetable optimization,the authors propose a schedule-based passenger flow assignment method,construct the corresponding timetabling optimization model and design the bi-directional coordinated sequential optimization algorithm.For the optimization of rolling stock circulation,the authors construct the corresponding optimization assignment model and adopt the Hungary algorithm for solving the model.Findings–The case study shows that the train operational plan developed by the study’s approach meets requirements on the passenger service quality and reduces the operational cost to the maximum by minimizing the numbers of train trips and rolling stocks.Originality/value–The example verifies the efficiency of the model and algorithm. 展开更多
关键词 Urban rail transit train operational plan Time-varying passenger demand passenger assignment passenger service quality
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Scheduling trains on railway network using random walk method
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作者 李克平 《Chinese Physics B》 SCIE EI CAS CSCD 2010年第3期227-232,共6页
According to random walk, in this paper, we propose a new traffic model for scheduling trains on a railway network. In the proposed method, using some iteration rules for walkers, the departure and the arrival times o... According to random walk, in this paper, we propose a new traffic model for scheduling trains on a railway network. In the proposed method, using some iteration rules for walkers, the departure and the arrival times of trains at each station are determined. We test the proposed method on an assumed railway network. The numerical simulations and the analytical results demonstrate that the proposed method provides an effective tool for scheduling trains. Some characteristic behaviours of train movement can be reproduced, such as train delay. 展开更多
关键词 train schedule random walk model passenger transportation plan
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Influence of Random Track Irregularities on Dynamic Response of Bridge/Track Structure/High-Speed Train Systems
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作者 Marian Klasztomy Monika Podwoma 《Journal of Civil Engineering and Architecture》 2014年第10期1335-1352,共18页
Random vertical track irregularities are one of essential vibration sources in bridge, track structure and high-speed train systems. The common model of such irregularities is a stationary and ergodic Gaussian process... Random vertical track irregularities are one of essential vibration sources in bridge, track structure and high-speed train systems. The common model of such irregularities is a stationary and ergodic Gaussian process. The study presents the results of numerical dynamic analysis of advanced virtual models of composite BTT (bridge/ballasted track structure/high-speed train) systems. The analysis has been conducted for a series of types of single-span simply-supported railway composite (steel-concrete) bridges, with a symmetric platform, located on lines with ballasted track structure adapted for high-speed trains. The bridges are designed according to Polish bridge standards. A new methodology of numerical modeling and simulation of dynamic processes in BTT systems has been applied. The methodology takes into consideration viscoelastic suspensions of rail-vehicles, nonlinear Hertz wheel-rail contact stiffness and one-side wheel-rail contact, physically nonlinear elastic-damping properties of the track structure, random vertical track irregularities, approach slabs and other features. Computer algorithms of FE (finite element) modeling and simulation were programmed in Delphi. Both static and dynamic numerical investigations of the bridges forming the series of types have been carried out. It has been proved that in the case of common structural solutions of bridges and ballasted track structures, it is necessary to put certain limitations on operating speeds, macadam ballast and vertical track roughness. 展开更多
关键词 Steel-concrete composite bridge ballasted track structure high-speed passenger train random vertical track irregularities numerical analysis.
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Indian Train Toll Reaches 111 Dead
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作者 李爱茹 《中学英语园地(高二版)》 2006年第1期27-29,共3页
关键词 INDIAN POLICE train passenger INJURED LUCKY scene
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Changing Trains
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作者 RICHARD MULLINS 《China Today》 2007年第6期46-47,共2页
“Harmony” proves more than just a name for commuters on China's new high-speed train.
关键词 “Harmony” commuters China's new high-speed trains passenger train
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场景理论视域下地铁列车旅客界面需求研究 被引量:1
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作者 曹淮 龚昕玥 《包装工程》 CAS 北大核心 2024年第2期200-208,225,共10页
目的 为了提高乘客在地铁车厢内的乘车体验,优化地铁列车旅客界面的合理性与便捷性。方法 以场景理论为基础,采用问卷调查和用户访谈等方法,收集现有地铁乘客的用户需求,提炼客观场景。运用Kano模型明确地铁旅客界面设计的用户需求权重... 目的 为了提高乘客在地铁车厢内的乘车体验,优化地铁列车旅客界面的合理性与便捷性。方法 以场景理论为基础,采用问卷调查和用户访谈等方法,收集现有地铁乘客的用户需求,提炼客观场景。运用Kano模型明确地铁旅客界面设计的用户需求权重,基于对用户需求权重的考量及QFD质量屋展开,功能需求被转化为产品特征,用以分析用户需求与产品特征之间的关系。结果 归纳了典型地铁乘车场景,构建地铁列车乘客界面的用户需求与产品特征之间的关联矩阵,并以此为基础分别从车厢布局、信号灯提示、扶握系统和导视系统四个方面,提出了地铁列车旅客界面的配置策略。结论 从场景分析的角度结合多重定量、定性分析方法,验证场景理论对挖掘地铁乘车需求具有一定指导作用,并提出地铁列车旅客界面在提升旅客乘车体验方面的初步建议。 展开更多
关键词 地铁列车 旅客界面 场景理论 KANO模型 质量功能展开(QFD)
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基于“互联互通”的嘉兴至枫南市域铁路列车开行方案研究
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作者 肖天国 宋唯维 +2 位作者 陈聪聪 张志会 陈友文 《铁道标准设计》 北大核心 2024年第7期11-18,25,共9页
嘉兴至枫南市域铁路是浙江省嘉兴市第一条市域铁路,是长三角地区多层次轨道交通网络中重要线路之一,与嘉善至西塘市域铁路互联互通。“互联互通”条件下市域铁路网络跨线运营是未来的发展趋势,列车开行方案设计是制定市域铁路运输组织... 嘉兴至枫南市域铁路是浙江省嘉兴市第一条市域铁路,是长三角地区多层次轨道交通网络中重要线路之一,与嘉善至西塘市域铁路互联互通。“互联互通”条件下市域铁路网络跨线运营是未来的发展趋势,列车开行方案设计是制定市域铁路运输组织方案的前提,做好“互联互通”条件下列车开行方案的制定是运营期市域铁路运营管理的一项主要工作,也是市域铁路规划设计阶段需要重点考虑的问题。在研究嘉兴至枫南市域铁路概况的基础上,对其进行数学建模。在分析市域铁路不同列车种类的基础上,以所有乘客总体出行时间效益最大化为优化目标,应用数学规划、多目标优化的方法构建了一套“互联互通”条件下列车开行方案优化模型,包括市域铁路直达列车数量计算模型、大站快车停站选择模型和大站快车、站站停列车数量计算模型。在研究嘉兴至枫南市域铁路线路互联互通的基础上,依据初期早高峰时段客流预测结果,计算得到初期早高峰时段嘉兴南站—南枫线段采用快慢车混跑方式,大站快车停车站为科技城站、嘉善站,开行直达列车1对/h,大站快车3对/h,站站停列车5对/h;嘉兴南站—示范区线段采用快慢车混跑方式,大站快车停车站为科技城站、嘉善站、西塘站,开行大站快车2对/h,站站停列车6对/h,进而确定嘉兴至枫南市域铁路列车开行方案。 展开更多
关键词 市域铁路 互联互通 列车开行方案 优化模型 乘客出行时间
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高速铁路列车乘客上下车策略分析及仿真模拟
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作者 姚明 马伟豪 曹淑超 《铁道运输与经济》 北大核心 2024年第5期42-49,99,共9页
为获得高速铁路列车乘客最优的上下车策略,选取CRH380AL型高速列车二等座车厢,构建乘客上下车策略仿真模型。针对不同的上下车策略,分析人员携带行李比例、上车人数的落座时间和过道密度,量化乘客上下车的效率和舒适度。结果表明:低密度... 为获得高速铁路列车乘客最优的上下车策略,选取CRH380AL型高速列车二等座车厢,构建乘客上下车策略仿真模型。针对不同的上下车策略,分析人员携带行李比例、上车人数的落座时间和过道密度,量化乘客上下车的效率和舒适度。结果表明:低密度时,乘客落座时间在双车门行策略和双车门倒金字塔策略下变化差异不明显。随着乘客人数和携带行李比例的增加,双车门倒金字塔策略的乘客落座时间最短。30人上车场景时,双车门倒金字塔策略车厢过道区域的最大密度和平均密度均为最低。在上下车人数为50人、携带行李比例为40%时,双车门倒金字塔策略的过道密度相较于双车门行策略和双车门斯蒂芬法策略较低,此时乘客舒适度较好。 展开更多
关键词 高速铁路列车 上下车策略 乘客落座时间 过道密度 乘客舒适度
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考虑动态随机客流的城市轨道交通列车时刻表仿真优化
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作者 张雨洁 闫海峰 +2 位作者 骆泳吉 朱蕾 施润宇 《铁道运输与经济》 北大核心 2024年第5期161-170,共10页
为更加精准刻画动态随机客流与列车时刻表编制间的复杂匹配过程,综合考虑乘客动态随机到达过程、列车容量限制、车内拥挤度对乘客上下车速率影响、停站时间动态调整和列车运行安全防护等重要运营特征,构建城市轨道交通列车运行离散仿真... 为更加精准刻画动态随机客流与列车时刻表编制间的复杂匹配过程,综合考虑乘客动态随机到达过程、列车容量限制、车内拥挤度对乘客上下车速率影响、停站时间动态调整和列车运行安全防护等重要运营特征,构建城市轨道交通列车运行离散仿真模型。在此基础上,建立以最小化乘客平均候车时间为目标的随机非线性优化模型,并设计一种基于仿真的有限差分随机逼近算法,用于优化城市轨道交通发车方案。以国内某条线路的实际运营数据为例验证仿真模型及优化方法,结果表明所构建模型及算法具有较好的优化效果和计算效率,优化后的列车实绩运行时刻能更好地适应客流需求的动态随机性,且在不增加发车频次的前提下有效降低乘客平均候车时间,提升城市轨道交通运营管理水平。 展开更多
关键词 城市轨道交通 动态随机客流 列车时刻表 系统仿真 有限差分算法
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基于加线技术的轨道交通临客开行计划优化模型
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作者 姚向明 程逸园 +2 位作者 张皓翔 邹庆茹 刘楠 《武汉理工大学学报(交通科学与工程版)》 2024年第3期409-414,共6页
基于运行图加线技术构建适于计划性临客开行的运行线铺画方法.以运力与客流匹配度最大化、对原运行图调整最小化为优化目标,考虑行车安全、临客加线位置、开行时间域等约束,构建临客运行线铺画非线性整数规划模型,并对其线性转换以提高... 基于运行图加线技术构建适于计划性临客开行的运行线铺画方法.以运力与客流匹配度最大化、对原运行图调整最小化为优化目标,考虑行车安全、临客加线位置、开行时间域等约束,构建临客运行线铺画非线性整数规划模型,并对其线性转换以提高求解效率.以北京地铁8号线某大型活动散场大客流为场景进行案例分析,结果表明:所构建方法能够在既有运行图上有效铺画临客运行线,满足不同行车密度及停站模式下的临客开行需求.建议在较高密度行车条件下不采用“空车直达”停站模式. 展开更多
关键词 临客列车 线性整数规划 城市轨道交通 运行图加线 可预知大客流
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基于乘客服务水平和安全的城市轨道交通扣车方案评价
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作者 江志彬 来佳雯 +2 位作者 赵源 王智永 金碧筠 《城市轨道交通研究》 北大核心 2024年第3期1-5,共5页
[目的]扣车是城市轨道交通发生长时间初始延误条件下经常采用的列车运行方案。为了评价该方案的合理性,需构建基于乘客服务和安全的扣车方案评价模型,并对扣车方案进行评价。[方法]考虑到乘客出行规律的复杂性和特殊性,制定了城市轨道... [目的]扣车是城市轨道交通发生长时间初始延误条件下经常采用的列车运行方案。为了评价该方案的合理性,需构建基于乘客服务和安全的扣车方案评价模型,并对扣车方案进行评价。[方法]考虑到乘客出行规律的复杂性和特殊性,制定了城市轨道交通扣车方案。构建了基于最大发车间隔、列车总延误时间、列车均衡性、终到延误列车数、滞留乘客数及乘客总旅行时间的扣车方案评价模型。选取上海某条轨道交通线路的4个区间,以早高峰小时的实际OD(起讫点)客流量为例进行计算。[结果及结论]计算表明,方案6下的综合评价指标最小,为最优扣车调整方案。该方案可以有效提高列车运行图的均衡性,减少滞留乘客的数量,降低车站的安全隐患。 展开更多
关键词 城市轨道交通 扣车方案 乘客服务水平 安全
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基于可预知大客流的城市轨道交通列车加开计划调整模型与算法
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作者 易志刚 《城市轨道交通研究》 北大核心 2024年第9期18-24,共7页
[目的]节假日、大型文体活动等事件会导致城市轨道交通线路产生可预知大客流,需在确保列车运行安全的前提下,根据客流预测情况在已有列车运行图中加开列车,以期在运营成本、运营组织复杂度和乘客服务水平之间取得平衡。[方法]采用事件-... [目的]节假日、大型文体活动等事件会导致城市轨道交通线路产生可预知大客流,需在确保列车运行安全的前提下,根据客流预测情况在已有列车运行图中加开列车,以期在运营成本、运营组织复杂度和乘客服务水平之间取得平衡。[方法]采用事件-活动网络,对列车运行过程进行了形式化描述,建立了3个目标函数及相关的约束条件,进而构建了独立运用策略下列车加开计划调整模型、套跑混合运用策略下列车加开计划调整模型。在此基础上,提出了基于混合遗传禁忌的搜索算法。结合深圳地铁11号线的实际运营数据,在高峰时段和非高峰时段分别建立了不同的算例场景,以验证所建模型和算法的有效性。[结果及结论]所建模型支持不同运营时段、不同运行交路、不同车底接续策略下列车加开需求,在可预知大客流的运营调整上具有适用性。在车辆资源相对有限的情况下,为有效缓解高峰时段的客流压力,可灵活采用大小交路套跑混合运用策略,使线路的运输能力最大化。 展开更多
关键词 城市轨道交通 可预知大客流 列车加开 列车运行计划调整
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