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| 15-Minute City Analysis× | Accessibility Analysis× | |
|---|---|---|
| Fagområde≠ | Urban Studies | Human Geography |
| Familie | Process / pipeline | Process / pipeline |
| Oprindelsesår≠ | 2021 | 1959 |
| Ophavsperson≠ | Carlos Moreno | Walter G. Hansen |
| Type≠ | Descriptive proximity assessment of daily needs by active travel | Spatial index of the ease of reaching opportunities from a location |
| Oprindelig kilde≠ | Moreno, C., Allam, Z., Chabaud, D., Gall, C., & Pratlong, F. (2021). Introducing the "15-Minute City": Sustainability, resilience and place identity in future post-pandemic cities. Smart Cities, 4(1), 93–111. DOI ↗ | Hansen, W. G. (1959). How accessibility shapes land use. Journal of the American Institute of Planners, 25(2), 73–76. DOI ↗ |
| Aliasser | Fifteen-Minute City Analysis, Chrono-Urbanism Analysis, Proximity Index Analysis, Quarter-Hour City Assessment | Hansen Accessibility, Gravity Accessibility Measure, Potential Accessibility, Spatial Accessibility Index |
| Relaterede | 4 | 4 |
| Resumé≠ | 15-minute city analysis assesses how many of life's daily needs — shops, schools, healthcare, work, recreation — residents can reach within a short walk or bike ride, typically fifteen minutes, from their homes. Articulated by Carlos Moreno in 2021 under the banner of chrono-urbanism, the concept reorients planning around proximity and time rather than mobility and distance. The analysis operationalizes it by computing walk or cycle isochrones around residential locations and scoring how completely the essential categories of urban functions fall within reach, producing proximity indices that can be mapped, compared across neighbourhoods, and weighted by population. | Accessibility analysis measures how easily opportunities — jobs, shops, clinics, parks — can be reached from a given location, combining the attractiveness (size) of destinations with the cost of travelling to them. The gravity-based formulation introduced by Walter Hansen in 1959 sums the opportunities at all destinations, each discounted by a distance-decay function of travel cost, producing a single accessibility score per origin that has become a foundational concept in transport geography and urban planning. |
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