A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Optimisation model to schedule railway track renewal operations: a life-cycle cost approach
Besides high initial construction costs, ballasted railway tracks also have high investment requirements, related to maintenance and renewal (M&R) works. Decision support tools for railway track components that optimise these works are increasingly gaining in importance. This paper presents an optimisation model that integrates ballast, rail and sleeper degradation models in a mixed integer linear programming model. This model links the decisions to renew these components with their condition and takes advantage of the integrated planning of renewal works to minimise the railway track life-cycle cost (LCC). The practical utility of the model is illustrated with a case study involving the Portuguese Lisbon–Porto line. The results indicate a reduction in track renewal cost if the grouping of components, track segments and time interval for renewal operations are optimised. Furthermore, this paper demonstrates that possible annual budget restrictions for railway track M&R operations can have an important influence on the railway track LCC.
Optimisation model to schedule railway track renewal operations: a life-cycle cost approach
Besides high initial construction costs, ballasted railway tracks also have high investment requirements, related to maintenance and renewal (M&R) works. Decision support tools for railway track components that optimise these works are increasingly gaining in importance. This paper presents an optimisation model that integrates ballast, rail and sleeper degradation models in a mixed integer linear programming model. This model links the decisions to renew these components with their condition and takes advantage of the integrated planning of renewal works to minimise the railway track life-cycle cost (LCC). The practical utility of the model is illustrated with a case study involving the Portuguese Lisbon–Porto line. The results indicate a reduction in track renewal cost if the grouping of components, track segments and time interval for renewal operations are optimised. Furthermore, this paper demonstrates that possible annual budget restrictions for railway track M&R operations can have an important influence on the railway track LCC.
Optimisation model to schedule railway track renewal operations: a life-cycle cost approach
Caetano, Luis Filipe (author) / Teixeira, Paulo Fonseca (author)
Structure and Infrastructure Engineering ; 11 ; 1524-1536
2015-11-02
13 pages
Article (Journal)
Electronic Resource
English
Optimisation model to schedule railway track renewal operations: a life-cycle cost approach
| Online Contents | 2015
Availability Approach to Optimizing Railway Track Renewal Operations
| Online Contents | 2013
Optimisation of railway track maintenance and renewal works by genetic algorithms
| DOAJ | 2016
Strategic Model to Optimize Railway-Track Renewal Operations at a Network Level
| Online Contents | 2016