Shared Space

What is shared space?

Shared space is an urban street design approach pioneered by Dutch traffic engineer Hans Monderman in the 1980s. It removes or minimises physical and visual separation between motor vehicles, pedestrians, and cyclists by eliminating kerbs, road surface markings, traffic signs, and traffic lights. The underlying philosophy holds that when people cannot rely on regulatory devices or clear hierarchy, they will instead engage in direct eye contact and negotiation, leading drivers to adopt a more cautious, deliberate pace and all users to exercise greater mutual respect. This principle aligns with broader goals of placemaking and urban design that prioritises human interaction over vehicle movement.

How does shared space encourage safer behaviour?

Monderman's central insight was that drivers and pedestrians naturally adjust their behaviour in response to perceived risk and social cues. When a street contains no clear rules or physical boundaries, users must pay closer attention to each other rather than to signs. As Monderman observed, "When you don't exactly know who has right of way, you tend to seek eye contact with other road users. You automatically reduce your speed, you have contact with other people and you take greater care." In early implementations, notably in the Dutch village of Oudehaske, removing all traffic infrastructure and establishing one unified surface led to a reported 40 percent reduction in vehicle speed and improved safety by encouraging mutual awareness and reduced dominance of motor vehicles.

How does shared space differ from pedestrian zones and residential zones?

What is the evidence for and against shared space?

Early implementations in the Netherlands, particularly under Monderman's direction, reported positive outcomes: reduced speeds, improved safety, and enhanced public experience. The approach spread to Austria, Belgium, Germany, Scandinavia, Switzerland, and the United Kingdom, with advocates citing Poynton Village and Exhibition Road in London as successful examples.

However, research has challenged these claims. A 2011 study by the University of the West of England found that some benefits attributed to shared space schemes were not supported by evidence, particularly regarding pedestrian safety and speed reduction. Most significantly, in 2018, the UK Department for Transport withdrew its support, with Transport Minister Nusrat Ghani stating that shared space schemes "just don't work" for vulnerable users. This shift reflected growing evidence that shared space creates real barriers for people who cannot rely on visual navigation.

Why do blind and partially sighted people oppose shared space?

Blind and partially sighted people navigate streets through tactile and auditory cues: a raised kerb edge signals a hazard or crossing opportunity, paving texture differentiates sidewalk from road, and consistent sound patterns help orient movement. Shared space eliminates these essential navigation aids. When there is no kerb, no paving distinction, and no regulatory clarity, someone who is blind cannot independently determine where the safe pedestrian area ends and the traffic zone begins. The perceived right-of-way becomes invisible.

This concern is not theoretical. Guide Dogs for the Blind Association and a coalition of over thirty disability organisations launched a "Say No to Shared Streets" campaign documenting specific harms: difficulty locating safe crossing points, inability to navigate independently, and fear of stepping into an unmarked traffic zone. The organisations emphasised that shared space fundamentally conflicts with universal access and that no amount of informal social negotiation compensates for the removal of physical safety infrastructure. For people with mobility aids, wheelchairs, or canes, shared space creates unnecessary hazard and dependency on sighted assistance.

Where has shared space been implemented, and with what results?

Is shared space suitable for all street contexts?

Shared space works best in low-traffic, low-speed environments where vehicles are secondary and pedestrians, cyclists, and residents are the primary users. It is most effective in village centres, residential squares, or courtyard streets where traffic naturally moves slowly and the scale encourages observation and negotiation. Shared space performs poorly on high-traffic streets, near schools, in areas with high elderly or disabled populations, and in contexts where vehicles cannot naturally be constrained to low speed. Environments with high walkability and strong public space character are more likely to support shared space principles.

Contemporary urban design practice often favours a different approach: clear physical separation combined with low speed limits (20 km/h zones), rather than removal of all demarcation. This "managed separation" philosophy provides explicit safety for vulnerable users while still prioritising pedestrian and cycling experience. The trend in UK and Northern European policy has shifted away from unmarked shared space toward more legible, accessible street designs that communicate priority and hazard through both physical form and regulatory clarity. Such approaches better integrate with mixed-use development where diverse users (residents, workers, visitors, people with disabilities) depend on clear wayfinding and safety cues.