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Railway track structure - a holistic optimization of design and maintenance for improved performance

Reference number
Coordinator CHALMERS TEKNISKA HÖGSKOLA AKTIEBOLAG - Institutionen för industri och materialvetenskap
Funding from Vinnova SEK 3 330 600
Project duration November 2013 - September 2018
Status Completed

Purpose and goal

The aims of the project have been to increase the understanding of long-term track geometry degradation, the development of a more accurate method for continuous track stiffness measurement, and to provide guidelines for the optimization of concrete sleeper design with or without under sleeper pads. All these aims have been met. The planned field study of the influence of different maintenance methods had to be cancelled because access to track was not approved.

Expected results and effects

A concluding technical report is available. Examples of results include: (1) 20 years of track geometry data have been analysed. (2) The influence of tamping on track geometry degradation rate has been investigated, and concrete sleeper design and optimum support conditions to reduce long-term sleeper and ballast degradation have been defined. (3) An enhanced method for continuous track stiffness measurement has been developed. This will help to improve maintenance planning and reduce life cycle cost and environmental footprint of railway tracks.

Planned approach and implementation

Each partner had different responsibilities in the project but most of the work was performed as a collaboration between partners. In total, 9 physical meetings and 9 telephone meetings have been held. The results from the project are presented in 1 concluding technical report, 8 reports (including 3 international conference papers and 2 journal papers) and 1 patent. Part of the work was performed in parallel with the three-year project IN2RAIL, which received funding from the European Union’s Horizon 2020 research and innovation programme.

The project description has been provided by the project members themselves and the text has not been looked at by our editors.

Last updated 8 January 2019

Reference number 2013-03012

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