SOME areas in Worcester already have a 20mph limit. Wide area 20mph limits are seven times more cost effective per mph reduced per mile of road than isolated zones with physical calming.

They are five times more cost effective than targeted interventions on A roads to cut deaths and serious injuries.Implementation costs are typically under one per cent of yearly casualty and physical inactivity costs.

Among urban and village improvement options, 20mph is top for cost effectiveness. It is wide area for the majority of streets to benefit all road users and travel modes.

Casualties fall 20 per cent, noise almost halves and active travel rises. Councils can afford it.

For the cost of 20mph for a 200,000 population (£600,000), a transport shopping basket would contain just four traffic controlled junctions (at £150,000) or 13 puffin crossings (at £45,000).

Bristol reports the estimated total number of injuries avoided across the city each year as 4.53 fatal, 11.3 serious and 159.3 slight injuries. The estimated annual saving to society from fewer casualties is £15.25 million.

The ‘do nothing’ option costs more to society than bringing in 20mph limits. Physical activity levels rise. It resets the consensus on how we drive around people.

The key difference between wide 20mph limits and all other highways options is its scope; 20mph brings door-to-door improvements with long lasting changes to a community and people’s habits, for a one-off cost, and 20mph improves safety, perceptions of risk and encourages healthier travel choices.

Seventy per cent of people say 20mph is right for where people live.