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A Study on a Mathematical Model of the Long-term Track Tamping Scheduling Problem  

Oh Seog-Moon (한국철도기술연구원, 철도정책물류연구본부)
Lee Jeeha (한국철도기술연구원 궤도토목연구본부)
Lee Hee-Up (한국철도기술연구원 궤도토목연구본부)
Park Bum Hwan (한국철도기술연구원 철도정책물류연구본부)
Hong Soon-Heum (한국철도기술연구원 철도정책물류연구본부)
Publication Information
Journal of the Korean Society for Railway / v.9, no.1, 2006 , pp. 50-56 More about this Journal
Abstract
This paper presents a mathematical model of the long-term track tamping scheduling problem in the Korean highspeed railway system. The presented model encompasses various operational field constraints, moreover improves a state-of-the-art model in extending the feasible space. We show the model is sized up to intractable scale, then propose another approximation model that is possible to handle with the present computer system and commercial optimization package, directly. The aggregated index, lot, is selected, considering the resolution of the planning horizon as well as scheduling purpose. Lastly, this paper presents two test results for the approximation model. The results expose the approximation model to quite promising in deploying it into an operational software program for the long-term track tamping scheduling problem.
Keywords
Tamping scheduling; Mathematical model; Index aggregation;
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  • Reference
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