Compact 15-minute cities are greener
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ID: 282791
2024
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Abstract
The 15-minute city concept, advocating for cities where essential services
are accessible within 15 minutes on foot and by bike, has gained significant
attention in recent years. However, despite being celebrated for promoting
sustainability, there is an ongoing debate regarding its effectiveness in
reducing car usage and, subsequently, emissions in cities. In particular,
large-scale evaluations of the effectiveness of the 15-minute concept in
reducing emissions are lacking. To address this gap, we investigate whether
cities with better walking accessibility, like 15-minute cities, are associated
with lower transportation emissions. Comparing 700 cities worldwide, we find
that cities with better walking accessibility to services emit less CO$_2$ per
capita for transport. Moreover, we observe that among cities with similar
average accessibility, cities spreading over larger areas tend to emit more.
Our findings highlight the effectiveness of decentralised urban planning,
especially the proximity-based 15-minute city, in promoting sustainable
mobility. However, they also emphasise the need to integrate local
accessibility with urban compactness and efficient public transit, which are
vital in large cities.
| Reference Key |
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| Authors | Francesco Marzolla; Matteo Bruno; Hygor Piaget Monteiro Melo; Vittorio Loreto |
| Journal | arXiv |
| Year | 2024 |
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