For what it is worth - apart from road signs and speeds - I've not really seen imperial measurements used for much any more in the UK.
I would be amazed (and saddened) if someone had started a new, large-scale, serious, rigorous, engineering project in the past couple of decades (i.e. since the 90s) and used imperial units (I am sure there are lots of small-scale/personal/etc stuff done in imperial though - I dont count interplanetary space flight as small-scale!)
Imperial is pretty much dead in the UK (or maybe just London?) apart from roads and conversational/casual usage where its often easier to say the imperial equivalent than the metric (e.g. "pint of beer" is easier than saying "568 millilitres of beer", "about a foot" is easier than saying "about 30 centimetres" just because of fewer syllables if nothing else).
If you think imperial measurements are dead in london you never had to deal with plumbing in your apartment where you have a mixture of imperial and metric pipes and threads ;)
And the best is always finding a metric pipe with an inch thread pitch on it....
Also IIRC technically most engineering schools in the US also use metric these days, it doesn't mean stuff doesn't get screwed up, imperial on it's own is also annoying since you have both decimal (thous) and fractional units which I always found frustrating on it's own.
