Scheduling tamping operations on railway tracks using mixed integer linear programming
Journal article, 2015

A mixed integer linear programming model for the problem of scheduling tamping operations on ballasted tracks is presented and analyzed. The model improves a previously proposed one by introducing disaggregated constraints yielding in a model with stronger lower bound from the continuous relaxation of the binary variables. A more general cost structure is proposed; a structure having the possibility of including setup costs for the tamping operations. The problem considered is shown to be NP-hard. A numerical study is performed to evaluate the performance of the model compared to two simple policies for constructing maintenance schedules. The computational results show that the maintenance costs can be reduced by up to 10% as compared with the best policy investigated.

Railway maintenance

Mixed integer linear optimization

Preventive maintenance

Rail tamping

Maintenance scheduling

Author

Emil Gustavsson

Chalmers, Mathematical Sciences, Mathematics

University of Gothenburg

EURO Journal on Transportation and Logistics

2192-4376 (ISSN) 2192-4384 (eISSN)

Vol. 4 1 97-112

Driving Forces

Sustainable development

Areas of Advance

Transport

Subject Categories

Computational Mathematics

Reliability and Maintenance

Roots

Basic sciences

DOI

10.1007/s13676-014-0067-z

More information

Created

10/7/2017