RadiusMapperDefinition
Walkshed
Also known as: Ped shed, Pedestrian shed, Walking isochrone
A walkshed is the area a pedestrian can reach on foot from a given point within a fixed time. It is the walking-mode equivalent of a drive-time polygon and the foundation of walkability analysis.
A walkshed (sometimes pedshed) is the polygon representing the area reachable on foot from a given origin within a time budget. Urban-planning literature prefers walkshed over 'walking radius' because the shape reflects actual pedestrian infrastructure — sidewalks, crosswalks, trails, building-block permeability — not straight-line distance. The 10-minute city and 15-minute city urban-design movements are both grounded in walkshed analysis: does every resident have essential services inside their walkshed?
Key characteristics
- 5-minute walkshed: roughly 0.2-0.25 square miles.
- 10-minute walkshed (common in urban planning): 0.6-0.9 square miles.
- 15-minute walkshed (the 15-minute-city benchmark): 1.3-1.8 square miles.
- Average walking pace: 3 mph (5 km/h) for healthy adults on flat terrain.
- Walksheds shrink significantly on steep grades, in poor weather, or for elderly / disabled populations.
Common use cases
- Urban walkability studies
- Transit-oriented development planning
- Retail pedestrian-traffic analysis
- Real estate walk-score calculations
How it compares to related terms
Frequently asked about walkshed
What is a 15-minute city?
The 15-minute city is an urban planning concept: every resident should be able to reach most daily needs — grocery, work, school, healthcare, parks — within a 15-minute walkshed from home. Carlos Moreno popularized the framing in 2016, but similar concepts (neighborhood unit, 10-minute city, transit village) go back a century. Walksheds are the measurement tool.
How big is a 15-minute walkshed?
In a dense city with a gridded pedestrian network (New York, London, Paris), a 15-minute walkshed covers 1.3-1.8 square miles. In suburbs with cul-de-sacs and missing sidewalks, the same 15 minutes covers half that area because the network is less permeable. Walkshed size is as much about street design as walking speed.
What is the difference between walkshed and Walk Score?
A walkshed is the geometric polygon reachable on foot. Walk Score is a rating (0-100) that uses walkshed analysis plus amenity density inside that walkshed to produce a walkability score for any address. Walk Score uses walksheds as input; the walkshed itself is neutral on whether the area is useful.
Do walksheds account for hills and barriers?
Production walkshed engines factor in elevation (steeper grades slow walking speed), crosswalk wait times, and barriers like highways without pedestrian crossings. Basic walkshed tools treat all pedestrian paths as equal, which overestimates reach in hilly or car-dominated areas.