20mph speed limits: Slower is safer
The speed limit on some residential roads and in some local centres in Birmingham has changed to 20mph.
We’re in this together.
If you need some inspiration on how you can bring down speeds in your area, have a look at our road safety toolkits:
Slower is Safer - 3-year monitoring report
This report summarises findings from monitoring of 20mph speed limits in Birmingham, to evaluate the impact of the programme in the period 3 years after its installation.
It examines data on changes in traffic speeds and road casualties, comparing this to before and after scheme implementation.
Page last updated: 11 September 2025
