Planning strategies for promoting environmentally suitable pedestrian pavements in cities |
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| Authors: | Joan-Manuel F Mendoza Jordi Oliver-Solà Xavier Gabarrell Joan Rieradevall Alejandro Josa |
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| Institution: | 1. Sostenipra, Institute of Environmental Science and Technology, School of Engineering, Universitat Autònoma de Barcelona, Campus de la UAB, Bellaterra, 08193 Barcelona, Catalonia, Spain;2. Inèdit Innovació SL, Carretera de Cabrils, km 2, 08348 Cabrils, Barcelona, Catalonia, Spain;3. Department of Chemical Engineering, School of Engineering, Universitat Autònoma de Barcelona, Campus de la UAB, Bellaterra, Cerdanyola del Vallès, 08193 Barcelona, Catalonia, Spain;4. Department of Geotechnical Engineering and Geosciences, School of Civil Engineering, Technical University of Catalonia – Barcelona Tech, Campus Nord, C/Jordi Girona 1-3, Building D2, 08034 Barcelona, Catalonia, Spain;5. Institute of Sustainability, Technical University of Catalonia – Barcelona Tech, Campus Nord, Building VX, Plaça Eusebi Güell, 6, 08034 Barcelona, Catalonia, Spain;1. Swedish National Road and Transport Research Institute, Sweden;2. The Swedish Transport Administration, Sweden;1. School of Civil, Structural and Environmental Engineering and Dublin Energy Lab, Dublin Institute of Technology, Bolton Street, Dublin, Ireland;2. Faculty of Architecture, Building and Planning, The University of Melbourne, Parkville, Victoria 3010, Australia |
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| Abstract: | This paper examines the relevance of incorporating comprehensive life-cycle environmental data into the design and management of pedestrian pavements to minimize the impact on the built environment. The overall primary energy demand and global warming potential of concrete, asphalt and granite sidewalks are assessed. A design with a long functional lifetime reduces its overall primary energy demand and global warming potential due to lower maintenance and repair requirements. However, long-lived construction solutions do not ensure a lower life-cycle primary energy demand and global warming potential than for shorter-lived designs; these values depend on the environmental suitability of the materials chosen for paving. Asphalt sidewalks reduce long-term global warming potential under exposure conditions where the functional lifetime of the pavements is less than 15 years. In places where it is known that a concrete sidewalk can have a life of at least 40 years, a concrete sidewalk is the best for minimizing both long-term primary energy demand and global warming potential. Granite sidewalks are the largest energy consumers and greenhouse gas contributors. |
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