The 20mph campaign/s and arguments...

A435, the bit which is "Kings Heath High St). It is not necessarily being done, but "liveinhope" are pushing hard for it. There are not even any schools on that part, just shops and a lot of bus stops.
The bit that is about 1 mile long?

That would take 2 minutes to travel at 30 mph, barring any stopping for inconveniences, such as traffic signals, other vehicles, or, dare I say, children?

So that would take, what, 3 minutes at 20 mph under those exact same conditions?

A terrible inconvenience indeed.

Notwithstanding that in traffic, with delays, lowering the top speed can lead to a faster average speed, as drivers spend less time causing wavefronts in the raffic flow flow.