[MEDIA=liveleak]8b9_1193832262[/MEDIA] Use TV remote to change traffic lights to green. Mark
Not beyond the bounds of possibility due to various tools available to emergency services to do this very thing but the reality I would doubt but not really be surprised if I was wrong. Although that said I once attended a meeting between Met, GLC (it was a long time ago) Inner London Type Committee and the Companies where the Met said they didn't really see the point as changing the lights made **** all difference to the traffic and they were pretty well practised at making progress without confusing the issues.
Suspicious... At 1:00 in the video, pressing the button instantaneously turns the light to green, which means the crossing road never sees any amber...