A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Allocation of effective maintenance limit for railway track geometry
The objective of this study has been to develop an approach to the allocation of an effective maintenance limit for track geometry maintenance that leads to a minimisation of the total annual maintenance cost. A cost model was developed by considering the cost associated with inspection, preventive maintenance, normal corrective maintenance and emergency corrective maintenance. The standard deviation and extreme values of isolated defects of the longitudinal level were used as quality indicators for preventive and corrective maintenance activities. The Monte Carlo technique was used to simulate the track geometry behaviour under different maintenance limit scenarios and the effective limit was determined which minimises the total maintenance cost. The applicability of the model was tested in a case study on the Main Western Line in Sweden. Finally, a sensitivity analysis was carried out on the inspection intervals, the emergency corrective maintenance cost and the maintenance response time. The results show that there is an optimal region for selecting an effective limit. However, by considering the safety aspects in track geometry maintenance planning, it is suggested that the lower bound of the optimal region should be selected.
Allocation of effective maintenance limit for railway track geometry
The objective of this study has been to develop an approach to the allocation of an effective maintenance limit for track geometry maintenance that leads to a minimisation of the total annual maintenance cost. A cost model was developed by considering the cost associated with inspection, preventive maintenance, normal corrective maintenance and emergency corrective maintenance. The standard deviation and extreme values of isolated defects of the longitudinal level were used as quality indicators for preventive and corrective maintenance activities. The Monte Carlo technique was used to simulate the track geometry behaviour under different maintenance limit scenarios and the effective limit was determined which minimises the total maintenance cost. The applicability of the model was tested in a case study on the Main Western Line in Sweden. Finally, a sensitivity analysis was carried out on the inspection intervals, the emergency corrective maintenance cost and the maintenance response time. The results show that there is an optimal region for selecting an effective limit. However, by considering the safety aspects in track geometry maintenance planning, it is suggested that the lower bound of the optimal region should be selected.
Allocation of effective maintenance limit for railway track geometry
Khajehei, Hamid (author) / Ahmadi, Alireza (author) / Soleimanmeigouni, Iman (author) / Nissen, Arne (author)
Structure and Infrastructure Engineering ; 15 ; 1597-1612
2019-12-02
16 pages
Article (Journal)
Electronic Resource
English
Exploring Different Alert Limit Strategies in the Maintenance of Railway Track Geometry
| Online Contents | 2016
Exploring Different Alert Limit Strategies in the Maintenance of Railway Track Geometry
| Online Contents | 2016
Exploring Different Alert Limit Strategies in the Maintenance of Railway Track Geometry
| Online Contents | 2016