Air pressure braking of trains, etc.

[billyorange007]

I learnt to fly in an airfield, or grass strip as they are also known as. Very handy when there was a strong cross wind as one could just fly into the wind and across the usual landing strip

[billyorange007]

In Northern Ireland police stations are commonly called police barracks

[Gareth's was W7 now W10 Downst]

And in mainland Brit, plod pods

[charles]

could that be that some police live there?