Scheduling preventive railway maintenance activities

Budai, G.; Huisman, Dennis; Dekker, Rommert

doi:10.1109/icsmc.2004.1401185

Cited by 34 publications

(38 citation statements)

References 2 publications

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“…As a mass-transport-system depends heavily on its warrant of time-reliable and safety of transportation, an importance of an appropriate maintenance is recognized as prominent criteria to deliver those promises [3,6]. A decent maintenance is to preserve trains to their good condition.…”

Section: Literature Reviewmentioning

confidence: 99%

“…Many papers proposed methods to simplify the problem. Budai et al [6] grouped tasks to reduce the number of decision variables. While other papers [21][22] reduced the problem size by dividing it into sub problems and sequentially solve them.…”

Section: Submentioning

confidence: 99%

“…A maintenance process is the procedure to repair or replace parts of a rail system to warrant that risk of accident is limited. Although the process is very costly, time consuming and nonprofit, it is inevitably undertaken to certify safety of the service [6]. Reducing maintenance cost without reduction in quality is, therefore, the key for service operator to gain more profit.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Overhaul Resource Planning for Rolling Stock Using MIP Models

Jiravanstit¹,

Tharmmaphornphilas²

2017

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Abstract. In term of maintenance, parts must be maintained to satisfy operating conditions. Although, maintenance is costly and unprofitable, it is indispensable. Thus, reducing maintenance costs without reducing maintenance is one of the critical issues. Since maintenance costs mainly come from resources, they should be properly managed to minimize the cost. Hence, the goal of this paper is to find the optimal number of resources for required maintenance activities. Two mixed-integer programming models are developed. The first model is used for a long-term plan to find a proper number of resources while the second one generates a maintenance schedule for a shorter time frame to verify feasibility of the plan.

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Section: Literature Reviewmentioning

confidence: 99%

Section: Submentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Overhaul Resource Planning for Rolling Stock Using MIP Models

Jiravanstit¹,

Tharmmaphornphilas²

2017

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“…Researchers have introduced 23 models for assigning locomotives to trains (Vaidyanathan et al 2008), crew planning (Chahar et al 2011), scheduling maintenance (Budai et al 2006), and managing empty railcar movements (Sherali and Suharko 1998).…”

Section: Locomotive Research Applicationsmentioning

confidence: 99%

Integrated optimization and simulation models for the locomotive refueling system configuration problem

Verschelden¹,

Stamm²,

Easton³

2017

2017 Winter Simulation Conference (WSC)

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Locomotives in the U.S. use over 3 billion gallons of fuel each year and faster refueling can increase rail network capacity without the infrastructure cost associated with new terminals or tracks. This thesis introduces the locomotive refueling system configuration problem (LRSCP), which seeks to improve efficiency in refueling yards through new technologies or policies. This research also creates two new methods to solve LRSCP. Based on experimental results, solving either TRIP or SLIP and incorporating the optimal refueling policy improves railyard operations by 10 to 30%. This impact is statistically significant and increases the capacity of a railyard. Additionally, it impacts other important parameters such as time spent in the yard and the maximum queue for the railyard. Furthermore, there is a significant decrease in wasted time and an improvement to railyard efficiency.Implementing either method should increase a railyard's capacity and significantly increase revenue opportunities.iv

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“…We refer the interested reader to, e.g., Doganay and Bohlin [6] and Budai et al [3] and to the general reviews of Kobbacy and Murthy [15] and Lidén [16]. In the following, we set up the problem and analyze its complexity in Sections 2 and 3, respectively.…”

Section: Introductionmentioning

confidence: 99%

Shunting operations at flat yards: retrieving freight railcars from storage tracks

2017

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In this paper, we study the railcar retrieval problem (RRT) where specified numbers of certain types of railcars have to be withdrawn from the storage tracks of a flat yard. This task arises in the daily operations of workshop yards for railcar maintenance. The objective is to minimize the total cost of shunting via methods such as minimizing the usage of shunting engines.We describe the RRT formally, present a mixed-integer program formulation, and prove the general case to be NP-hard. For some special cases, exact algorithms with polynomial runtimes are proposed. We also analyze several intuitive heuristic solution approaches motivated by observed realworld planning routines. We evaluate their average performances in simulations with different scenarios and provide their worst-case performance guarantee. We show that although the analyzed heuristics result in much better solutions than the naive planning approach, they are still on average 30%-50% from the optimal objective value and may result in up to 14 times higher costs in the worst case. Therefore, we conclude that optimization should be implemented in practice in order to save valuable resources. Furthermore, we analyze the impacts of yard layout and the widespread organizational routine of presorting on the railcar retrieval cost.

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Scheduling preventive railway maintenance activities

Cited by 34 publications

References 2 publications

Overhaul Resource Planning for Rolling Stock Using MIP Models

Overhaul Resource Planning for Rolling Stock Using MIP Models

Integrated optimization and simulation models for the locomotive refueling system configuration problem

Shunting operations at flat yards: retrieving freight railcars from storage tracks

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