Modeling train movements through complex rail networks

Lü, Qi; Dessouky, Maged; Leachman, Robert C.

doi:10.1145/974734.974737

Cited by 64 publications

(39 citation statements)

References 7 publications

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“…However, some factors such as traction force and motion resistance are hard to acquire in reality. For simplicity, Kroon et al (1997) and Lu et al (2004) presented that time instants can be determined using the well-known formulas from the theory of dynamics and assumed that trains have either a uniform motion, or a uniform acceleration or deceleration motion [18,21]. Although constraint rates of acceleration and deceleration is slightly unrealistic [12].…”

Section: Operating Proceduresmentioning

confidence: 99%

Comparison Analysis between Route-locking-sectional-releasing and Route-locking-route-releasing Formulations for the Train Platforming Problem in Busy Complex Rail Passenger Stations

Zeng¹,

Zhang²,

Lei³

et al. 2017

IJUNESST

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Section: Operating Proceduresmentioning

confidence: 99%

Comparison Analysis between Route-locking-sectional-releasing and Route-locking-route-releasing Formulations for the Train Platforming Problem in Busy Complex Rail Passenger Stations

Zeng¹,

Zhang²,

Lei³

et al. 2017

IJUNESST

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“…So it is used to generate speed profile in our study. An algorithm which is developed by Lu and Dessouky [22] is used to determine the minimum travelling time of trains T min in a segment. It considers the initial speed of trains when they arrive at the entrance of segment.…”

Section: Generation Of Optimal Speed Profile In Each Segment For Trainsmentioning

confidence: 99%

An Optimization Approach for Real-Time Headway Control of Railway Traffic

Xun

Chen

2015

IEICE Trans. Inf. ^|^ Syst.

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SUMMARYHeadway irregularity not only increases average passenger waiting time but also causes additional energy consumption and more delay time. A real-time headway control model is proposed to maintain headway regularity in railway networks by adjusting the travel time on each segment for each train. The adjustment of travel time is based on a consensus algorithm. In the proposed consensus algorithm, the control law is obtained by solving the Riccati equation. The minimum running time on a segment is also considered. The computation time of the proposed method is analyzed and the analysis results show that it can satisfy the requirement on real-time operation. The proposed model is tested and the consensus trend of headways can be observed through simulation. The simulation results also demonstrate that the average passenger waiting time decreases from 52 to 50 seconds/passenger. Additionally, the delay time is reduced by 6.5% at least and energy consumption can be reduced by 0.1% at most after using the proposed method.

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“…The main types of problems which are solved in the process of searching for optimal adjustments are conflict detection and resolution (CDR) and train speed coordination (TSC) [3][4][5][6]. In these problems, the best order of trains movement determined on the condition that arise the deviations from their schedule (delays), which lead to conflicts.…”

Section: Literature Reviewmentioning

confidence: 99%

Optimal rescheduling for the mixed passenger and freight line

Davydov¹,

Dynkin²,

Chebotarev³

2014

WIT Transactions on the Built Environment

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The schedule of the double-track railway line with mixed traffic has two sections, such as passenger and freight segments. Punctuality is a measure of the quality of the passenger traffic. Local traffic punctuality in freight train traffic is an insignificant indicator. The level of the railway operator's expenditure is a more important criterion when the flow of freight trains has passed. We propose a new approach to the problem of operational management, which is based on the direct economic assessment of the dispatcher adjustments.The method of the operative rescheduling of freight train flow prescribes that the intraday period is divided into the economic and the intensive segments. The criterion for traffic separation into segments is dependent on the level of knock-on delays, respectively, the amount of energy and additional expenditure losses. Cost-effective technology of the local management is used when the number of freight trains is reduced.In this paper, we consider the total number of secondary unscheduled stops as a measure of the quality of the freight trains flow. This criterion is used together with a specialized stochastic model. The model is based on the composition of the probability distributions of departure times from the original station and the duration of the primary train delays.

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Modeling train movements through complex rail networks

Cited by 64 publications

References 7 publications

Comparison Analysis between Route-locking-sectional-releasing and Route-locking-route-releasing Formulations for the Train Platforming Problem in Busy Complex Rail Passenger Stations

Comparison Analysis between Route-locking-sectional-releasing and Route-locking-route-releasing Formulations for the Train Platforming Problem in Busy Complex Rail Passenger Stations

An Optimization Approach for Real-Time Headway Control of Railway Traffic

Optimal rescheduling for the mixed passenger and freight line

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