What about enforcement? Won’t motorists just ignore this?

The evidence from Portsmouth’s 20mph limits shows motorists did slow down when the new limits were introduced. In fact they found the biggest reductions in speed on the roads where speeds had previously been highest.

The key is community engagement. If Worthing residents all get together to agree to slow down then it can be done. After all, if you’d like drivers to slow down in your road, then it’s only fair for you to slow down when driving down someone else’s road. This is one of the big advantages compared to the current approach of small selected 20mph zones. This way everyone benefits, and everyone takes responsibility for making it work.

In reality the reason most people do not break laws is at least as much to do with what the rest of society thinks as it is to do with the risk of getting caught by the police.

Many drivers seem to think that no-one minds if they drive at 30mph+ down someone’s street.

What the 20’s Plenty campaign aims to do is make drivers aware of the impact of their speed on other people’s lives and to highlight that the majority of people think that 20mph is the appropriate speed for residential roads.