Model for Corrective Maintenance Scheduling of Rail Transit Networks: Application to Athens Metro

Argyropoulou, Konstantina; Iliopoulou, Christina; Κεπαπτσόγλου, Κωνσταντίνος

doi:10.1061/(asce)is.1943-555x.0000457

Cited by 8 publications

(4 citation statements)

References 21 publications

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“…Following their discovery as part of an inspection procedure, a methodology was presented in the study for optimizing CMs in rail networks. A study modelled integer programming for minimizing passenger delays due to low operational speeds on degraded rail segments while giving importance to intensively operating segments, train loads, staffing, budgets, and other constraints [35]. Figure 2 shows the degradation of rails, which was monitored on a real-time basis.…”

Section: Statistical Methods For Track Maintenancementioning

confidence: 99%

Maintenance Methodologies Embraced for Railroad Systems: A Review

Prabhakaran¹,

Subbaiyan²,

Gopalakrishnan³

et al. 2022

Advances in Materials Science and Engineering

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Congestion on land, hike in fuel costs, and critical need to cut down environmental emissions have generated the urge to shift from conventional rail transit systems to metro rail and high-speed rail for a mass mode of transportation. The conventional railway network especially in India stages an effective space in the means of mass transit systems. Subsequently, periodic inspection of the state of railway tracks is vital for ensuring rail safety, as tracks are critical components of train transportation networks. Tracks are designed to withstand zero critical incidents, and with the advent of new high-speed train services, there is a greater need to focus on track performance. Track maintenance methods are customized to suit local conditions for enhancing safety and reducing disruptions while guaranteeing the resilience and sustainability of any rail system. In recent years, various aspects of the TMSs (track maintenance systems) have been introduced within the railway industry for both ballasted and ballastless track systems. This study reviewed various approaches to track maintenance measures using traditional methods, statistical methods, and geometry-based methods based on track deterioration. Among all the reviewed methods, track maintenance based on the geometry is said to cater to the needs of the maintainers. The outcomes of this study are expected to support and assist in track maintenance decisions in the railway industry.

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Section: Statistical Methods For Track Maintenancementioning

confidence: 99%

Maintenance Methodologies Embraced for Railroad Systems: A Review

Prabhakaran¹,

Subbaiyan²,

Gopalakrishnan³

et al. 2022

Advances in Materials Science and Engineering

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“…The blue line represents line 3, which is the testbed for this study. Primary data were supplied by the Athens metro operator (STASY S.A.), including travel times, passenger loads, and train specifications ( 23 ). Also, the maximum speed is limited to 80 km/h because of the line’s alignment specificities and not 120 km/h, which the train can normally reach.…”

Section: Applicationmentioning

confidence: 99%

“…Considering the actual scale of passenger demand can allow for better understanding of the need to limit acceleration, not just for the sake of passenger comfort but also for safety reasons. Indeed, in segments 4 and 5, 235 trains run daily (on weekdays), with passenger loads at these stations exceeding 50,000 passengers per day, which accounts for an estimated 10% of all Athens metro passengers ( 23 ). Given their role in the Athens metro network, the perceived level of passenger comfort and safety at these stations can affect the general perception of the level of service.…”

Section: Applicationmentioning

confidence: 99%

Metro Speed Profile Optimization Considering Passenger Comfort: Model and Application

Roumpekas

Iliopoulou

Κεπαπτσόγλου

2022

Transportation Research Record: Journal of the Transportation R

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Efficient timetable and speed profile determination are critical in improving the energy performance of railway systems. Relevant speed profile optimization models for railway systems typically aim at the minimization of energy consumption and passenger waiting times. Still, passenger comfort during the accelerations and decelerations of the train is significant for service quality, yet so far has been largely overlooked in relevant models. In this context, this study proposes a speed profile optimization model considering the effect of acceleration on passengers. Three distinct speed profiles are developed based on real-world data and used as input for the model. Subsequently, an integer linear programming model is formulated, minimizing the running time and energy consumption, and maximizing passenger comfort. The proposed model is applied to Athens (Greece) metro line 3 (blue line). Results corroborate the effectiveness of the proposed model in reducing travel times, while taking into account passenger comfort.

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“…Another example is the mixed integer linear programming (MILP) model for scheduling the renewal of rails, ballast, and sleepers in a network context developed by Caetano and Teixeira (2016). A special study with an application on a metro rail transit network by Argyropoulou et al (2019) focuses on scheduling urgent corrective maintenance activities and presents an integer linear programming (ILP) optimization model to minimize the impacts of these maintenance activities on passenger delay.…”

Section: Introductionmentioning

confidence: 99%

Scheduling Infrastructure Renewal for Railway Networks

Dao

Hartmann

Lamper³

et al. 2019

J. Infrastruct. Syst.

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The pressing necessity to renew infrastructure assets in developed railway systems leads to an increased number of activities to be scheduled annually. Scheduling of renewal activities for a railway network is a critical task since these activities often require a significant amount of time and create a capacity conflict in operation scheduling. This paper discusses economic and technological aspects, opportunities, and constraints in the renewals of multiple rail infrastructure components at several locations in a railway network. We address and model a challenging situation that there are interrelationships between different track lines, and thus, possession of a track line can have impacts on the other track lines and prevent renewal works on them. A mathematical formulation for the railway infrastructure renewal scheduling problem in the network context is presented to minimize the total renewal and unavailability costs. A method based on a triple-prioritization rule and an optimal sharing of renewal times allocated for different types of rail infrastructure components in a possession is proposed to solve the problem. The method is applied to a real case of a regional railway network in Northern Netherlands and it is shown that up to 13% of total costs can be saved compared to the current scheduling practice.

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Model for Corrective Maintenance Scheduling of Rail Transit Networks: Application to Athens Metro

Cited by 8 publications

References 21 publications

Maintenance Methodologies Embraced for Railroad Systems: A Review

Maintenance Methodologies Embraced for Railroad Systems: A Review

Metro Speed Profile Optimization Considering Passenger Comfort: Model and Application

Scheduling Infrastructure Renewal for Railway Networks

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