Almost every city claims to want to be walkable, and almost every city measures the wrong thing when it tries. The usual proxies are pavement width, the number of pedestrian crossings and the length of traffic-free streets. All of them matter, and none of them explains why people happily walk a mile along one road and take the bus for three hundred metres along another.
Walkability is not a property of the pavement. It is a property of the whole journey: where you are going, what you pass on the way, how safe and comfortable you feel doing it, and whether the walk is quicker or more pleasant than the alternatives. Get those right and people walk without being asked. Get them wrong and no amount of new paving will persuade them.
Destinations come first
The single strongest predictor of how much people walk is whether there is anywhere worth walking to. A beautifully detailed residential street that leads only to more residential streets will be pleasant and largely empty. A scruffy street with a bakery, a pharmacy, a primary school and a bus stop within a few minutes will be busy regardless of its surface.
This is why the tools that try to score walkability focus on proximity. Walk Score, the most widely used, gives full points to everyday amenities within five minutes’ walk, roughly a quarter of a mile, and then applies a decay so that a shop twenty minutes away counts for much less. The researchers Reid Ewing and Robert Cervero framed the same idea more broadly as the “D variables” of the built environment: density, diversity of uses, design, destination accessibility and distance to transit. Density and diversity together are what put the destinations close enough to reach on foot.
The implication for London is uncomfortable for anyone who treats walkability as a design exercise. Many of the least walkable places in the city are not badly designed streets. They are single-use areas: housing estates with no shops, retail parks with no homes, business districts that empty at six. Fixing those is a land use question before it is a streetscape one.
The network has to be fine-grained
The second factor is the pattern of routes. A dense grid of short blocks offers many ways between any two points, so the walking distance is close to the straight-line distance. A layout of cul-de-sacs and long superblocks can place a shop two hundred metres away as the crow flies and eight hundred metres away on foot, because the only route runs round the perimeter.
Jane Jacobs made the case for short blocks in The Death and Life of Great American Cities in 1961, and it has held up. Short blocks create more corners, more choices and more frontage per hectare, which in turn supports more of the ground-floor activity that makes a walk interesting. Much of inner London inherited this grain from its Georgian and Victorian street patterns. Much of post-war London lost it through comprehensive redevelopment, and reinstating a lost connection, a gate in a wall, a path across an estate, a new crossing at the point where people actually want to cross, is often the most valuable single intervention available.
Safety is about traffic first, then about people
People walk where they feel safe, and the first thing that makes a street feel unsafe is fast, heavy traffic. Narrow pavements beside a busy road, long waits at signalised crossings, and junctions designed around turning vehicles all tell a pedestrian that the street was not built for them.
The evidence from London’s low traffic neighbourhoods shows how much of this is within reach. A review of 46 schemes found that motor traffic inside the areas roughly halved, while the boundary roads showed little change on average. In Walthamstow Village, one of the early schemes in Waltham Forest, internal roads saw traffic fall by an average of 44.1 per cent. Streets with that little traffic become places children walk to school alone and older people cross without planning the route in advance.
The second layer of safety is social: the sense that other people are around and that someone might notice if something went wrong. That comes from active frontages, lit windows and doors that open onto the street, the same qualities discussed in our piece on what makes a ground floor work at street level. A street lined with blank walls and service yards can be perfectly free of traffic and still feel hostile after dark.
Comfort decides the marginal trip
Once a walk is useful and safe, comfort decides whether people choose it over the bus or the car. Comfort is made of small things that are easy to cut from a budget:
- Somewhere to sit. For many older people the distance they can walk is set by the distance between benches, not by the distance to the shops.
- Shade and shelter. Street trees and canopies make the difference between a tolerable and an unbearable walk in a hot summer, and between a pleasant and a miserable one in the rain.
- Uncluttered pavements. Bins, sign poles, advertising boards and parked scooters reduce a generous pavement to a single-file path. Decluttering costs little and helps everyone, particularly people with pushchairs, wheelchairs or poor sight.
- Dropped kerbs and level surfaces. A missing dropped kerb can make an entire route unusable for someone in a wheelchair.
- Public toilets. Rarely mentioned in walkability strategies and decisive for many people deciding whether to walk into town at all.
Interest keeps people walking
The last quality is the hardest to specify and the easiest to recognise. People walk further along streets that give them something to look at: shop windows, changing facades, trees, glimpses into courtyards, other people. The Danish architect Jan Gehl built much of his method on a simple observation technique, counting how many people walk, stop and linger in a place, because that count reveals whether a street holds attention.
This is also where the scale of buildings matters. Frequent doors and narrow plots give a walker something new every few seconds. A long uniform elevation, however handsome, makes the same distance feel longer.
Does it make a measurable difference?
It does. A study published in 2025 that tracked people moving between American cities found that moving from a less walkable city (around the 25th percentile) to a more walkable one (around the 75th) increased walking by about 1,100 steps a day on average. That is roughly ten minutes of extra walking daily, achieved without anyone deciding to exercise more. The environment did the work.
A short test for any street
If you want to judge how walkable a place is, skip the scoring tools and walk it with these questions in mind:
- Can you reach a food shop, a school, a GP and a bus stop within about ten minutes?
- Does the route go where you want to go, or round the edge of something?
- How long do you wait at crossings, and do they sit where people actually cross?
- How fast and how heavy is the traffic beside you?
- Is there anywhere to sit, and anywhere to shelter?
- Are there doors and windows onto the street, or walls and car parks?
- Would you let a ten-year-old make the trip alone?
The last question is the one most worth asking. A street that passes it is walkable for almost everyone. A street that fails it is walkable only for the confident, and that is a much smaller share of the population than most plans assume.
