Material Stock and Embodied Greenhouse Gas Emissions of Global and Urban Road Pavement
Roads play a key role in movements of goods and people but require large amounts of materials emitting greenhouse gases to be produced. This study assesses the global road material stock and the emissions associated with materials’ production. Our bottom-up approach combines georeferenced paved road...
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Online Access: | https://hdl.handle.net/11250/3041427 https://doi.org/10.1021/acs.est.2c05255 |
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ftntnutrondheimi:oai:ntnuopen.ntnu.no:11250/3041427 2023-05-15T16:50:26+02:00 Material Stock and Embodied Greenhouse Gas Emissions of Global and Urban Road Pavement Rousseau, Lola Sylvie Annie Kloostra, Bradley AzariJafari, Hessam Saxe, Shoshanna Gregory, Jeremy Hertwich, Edgar G. 2022 application/pdf https://hdl.handle.net/11250/3041427 https://doi.org/10.1021/acs.est.2c05255 eng eng American Chemical Society https://doi.org/10.1021/acs.est.2c05255 Norges forskningsråd: 300330 Norges forskningsråd: 257660 Environmental Science and Technology. 2022, . urn:issn:0013-936X https://hdl.handle.net/11250/3041427 cristin:2087574 Navngivelse 4.0 Internasjonal http://creativecommons.org/licenses/by/4.0/deed.no CC-BY 10 Environmental Science and Technology Peer reviewed Journal article 2022 ftntnutrondheimi https://doi.org/10.1021/acs.est.2c05255 2023-01-11T23:42:55Z Roads play a key role in movements of goods and people but require large amounts of materials emitting greenhouse gases to be produced. This study assesses the global road material stock and the emissions associated with materials’ production. Our bottom-up approach combines georeferenced paved road segments with road length statistics and archetypical geometric characteristics of roads. We estimate road material stock to be of 254 Gt. If we were to build these roads anew, raw material production would emit 8.4 GtCO2-eq. Per capita stocks range from 0.2 t/cap in Chad to 283 t/cap in Iceland, with a median of 20.6 t/cap. If the average per capita stock in Africa was to reach the current European level, 166 Gt of road materials, equivalent to the road material stock in North America and in East and South Asia, would be consumed. At the urban scale, road material stock increases with the urban area, population density, and GDP per capita, emphasizing the need for containing urban expansion. Our study highlights the challenges in estimating road material stock and serves as a basis for further research into infrastructure resource management. publishedVersion Article in Journal/Newspaper Iceland NTNU Open Archive (Norwegian University of Science and Technology) Environmental Science & Technology 56 24 18050 18059 |
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NTNU Open Archive (Norwegian University of Science and Technology) |
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ftntnutrondheimi |
language |
English |
description |
Roads play a key role in movements of goods and people but require large amounts of materials emitting greenhouse gases to be produced. This study assesses the global road material stock and the emissions associated with materials’ production. Our bottom-up approach combines georeferenced paved road segments with road length statistics and archetypical geometric characteristics of roads. We estimate road material stock to be of 254 Gt. If we were to build these roads anew, raw material production would emit 8.4 GtCO2-eq. Per capita stocks range from 0.2 t/cap in Chad to 283 t/cap in Iceland, with a median of 20.6 t/cap. If the average per capita stock in Africa was to reach the current European level, 166 Gt of road materials, equivalent to the road material stock in North America and in East and South Asia, would be consumed. At the urban scale, road material stock increases with the urban area, population density, and GDP per capita, emphasizing the need for containing urban expansion. Our study highlights the challenges in estimating road material stock and serves as a basis for further research into infrastructure resource management. publishedVersion |
format |
Article in Journal/Newspaper |
author |
Rousseau, Lola Sylvie Annie Kloostra, Bradley AzariJafari, Hessam Saxe, Shoshanna Gregory, Jeremy Hertwich, Edgar G. |
spellingShingle |
Rousseau, Lola Sylvie Annie Kloostra, Bradley AzariJafari, Hessam Saxe, Shoshanna Gregory, Jeremy Hertwich, Edgar G. Material Stock and Embodied Greenhouse Gas Emissions of Global and Urban Road Pavement |
author_facet |
Rousseau, Lola Sylvie Annie Kloostra, Bradley AzariJafari, Hessam Saxe, Shoshanna Gregory, Jeremy Hertwich, Edgar G. |
author_sort |
Rousseau, Lola Sylvie Annie |
title |
Material Stock and Embodied Greenhouse Gas Emissions of Global and Urban Road Pavement |
title_short |
Material Stock and Embodied Greenhouse Gas Emissions of Global and Urban Road Pavement |
title_full |
Material Stock and Embodied Greenhouse Gas Emissions of Global and Urban Road Pavement |
title_fullStr |
Material Stock and Embodied Greenhouse Gas Emissions of Global and Urban Road Pavement |
title_full_unstemmed |
Material Stock and Embodied Greenhouse Gas Emissions of Global and Urban Road Pavement |
title_sort |
material stock and embodied greenhouse gas emissions of global and urban road pavement |
publisher |
American Chemical Society |
publishDate |
2022 |
url |
https://hdl.handle.net/11250/3041427 https://doi.org/10.1021/acs.est.2c05255 |
genre |
Iceland |
genre_facet |
Iceland |
op_source |
10 Environmental Science and Technology |
op_relation |
https://doi.org/10.1021/acs.est.2c05255 Norges forskningsråd: 300330 Norges forskningsråd: 257660 Environmental Science and Technology. 2022, . urn:issn:0013-936X https://hdl.handle.net/11250/3041427 cristin:2087574 |
op_rights |
Navngivelse 4.0 Internasjonal http://creativecommons.org/licenses/by/4.0/deed.no |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1021/acs.est.2c05255 |
container_title |
Environmental Science & Technology |
container_volume |
56 |
container_issue |
24 |
container_start_page |
18050 |
op_container_end_page |
18059 |
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1766040584456241152 |