Assessing the CO2 impact of current and future rail track in the UK |
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| Authors: | Rachel L. Milford Julian M. Allwood |
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| Affiliation: | 1. KITE Solutions, SRL, Laveno Mombello, VA, Italy;2. Univ. Lille Nord de France, UVHC, LAMIH, CNRS, UMR 8201, F-59313 Valenciennes, France;3. Department of Shipping and Marine Technology, Chalmers University of Technology, Goteborg, Sweden;4. Swedish National Road and Transport Research Institute (VTI), and Department of Science and Technology, Linköping University, Linköping, Sweden;1. School of Economics and Business, Martin-Luther-University, Gr. Steinstr. 73, 06108 Halle, Germany;2. Faculty of Business, Economics and Social Sciences, Christian-Albrechts-University Kiel, Olshausenstr. 40, 24098 Kiel, Germany;1. Department of Civil and Industrial Engineering (DICE). University of Pisa, Italy;2. Nottingham Transportation Engineering Centre, University of Nottingham, Nottingham, United Kingdom;3. AECOM, 12 Regan Way, Beeston, United Kingdom;4. Department of Construction Management & Engineering, Faculty of Engineering Technology, University of Twente, Enschede, The Netherlands;5. Department of Civil, Energy, Environmental and Material Engineering (DICEAM), University Mediterranea of Reggio Calabria, Reggio Calabria, Italy;1. CIRED, 45 bis avenue de la Belle Gabrielle, Nogent-sur-Marne Cedex 94736, France;2. École des Ponts—ParisTech, 6-8 Avenue Blaise Pascal, Cité Descartes, Champs sur Marne, 77455 Marne la Vallée Cedex 2, France |
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| Abstract: | ![]()
This paper investigates the CO2 impact of current and future UK rail track and estimates the material, process and transport emissions associated with construction, maintenance and end-of-life activities for designs at high and low traffic loads. Analysis shows that for current track configurations, track with concrete sleepers has the lowest CO2 impact, followed by steel, hardwood and softwood. Several potential future rail track designs have been analysed including embedded rail and double and quadruple-headed rail. All future track designs have a lower impact than current designs, but this improvement is more marked at high traffic loads. Up to a 40% reduction in CO2 impact could be achieved if the UK rail network was to move from conventional track design to a double-headed embedded rail design. Key levers for reducing the CO2 impact of track are identified as service life extension, traffic load reduction and the selection of low impact track designs. |
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