September 23 2013.

The UK's biggest transport authority with over 1 million residents has announced wide 20mph just one week after the City of London made its decision. With Cardiff and Edinburgh saying 20's Plenty too, 20mph is spreading.

Birmingham City Council has said the default should be 20 mph and introduced through 'limits' rather than 'zones'.
Suitable for inclusion at 20 mph are: all residential roads; those with a designated high street function - defined as
'primary shopping frontages'; roads designated as 'secondary shopping frontages'; 'B' and 'A' roads with school
entrances or schools; and roads with other local trip attracters such as parks/ leisure facilities, Health Centres and
hospitals and public transport hubs and interchanges.
The total capital cost is an estimated £7m, primarily funded through Local Transport Plan (LTP) Integrated Block
Allocations, which are ring-fenced for transport schemes. Plus other funding such as the recent Cycle City Ambition
Fund bid which secured £0.8 million towards 20mph schemes.

The value of resulting casualty prevention is reported to be £5 million per year based on a conservative estimate in the reduction of collisions at 78 per year. Further benefits are from improvements in quality of life and encouragement of healthier and more sustainable transport modes such as walking and cycling.

A chance for small mopeds, scooters and electric bikes perhaps...?