20mph zones

Some areas of roads have been restricted to a maximum speed of 20mph rather than 30mph.

Why are 20mph limits used?

To reduce the speed of vehicles within certain groups of roads.

Where are they used?

In residential areas where road traffic crashes have occurred as a result of excessive speed and in locations identified as 'cluster sites'.

Why are other traffic-calming measures used in the zones?

It would be easy just to install a number of 20mph signs at the entrances to the Zones - but this would not significantly reduce vehicle speed. In our view, such zones have to be self-enforcing and to do this we need to use additional traffic calming measures.

How do I know if I am in a 20mph zone?

You will see a sign at each entrance point. There are no repeater signs within the zone.