15-minute city
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The 15-minute city is an urban planning concept in which most daily necessities and services – such as work, shopping, education, healthcare and leisure – can be easily reached by a 15-minute walk, bi
People walking and cycling in Paris, France. The concept of 15-minute cities gained traction after being advocated by Paris mayor Anne Hidalgo.
The 15-minute city was influenced by cities such as Paris, in which a range of amenities tend to be within walking distance.
Example of bike lane in Paris
“No 15 minute cities” graffiti in Hertfordshire, England, March 2025
Marchetti's constant
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Marchetti's constant is the average time spent by a person for commuting each day. Its value is approximately one hour, or half an hour for a one-way trip. It is named after Italian physicist Cesare M
15-minute city
…Fused grid – Type of urban planning design that aims to reconcile the urban grid and Radburn design housing Marchetti's constant – Average commuting time Mixed-use development – Type of urban development strategy…
Commuters on the New York City Subway
Average commuting time to work in Europe, in 2024