Blue lights are very effective at clearing traffic.

A friend of mine used to overhaul AMBULANCES.But the ambulance service would only let you do them one at a time so there would only be 1 out of service.Anyway he,s on his way to LONDON from BIRMINGHAM to drop a finished one off a pic up the next one.

I was 4 o'clock on a friday when he was just heading back to BIRMNGHAM and hit a shit load of traffic.

Flicked the blue lights on and drove 80 miles in 40 minutes.

He said they are the best invention for traffic busting.