How about this for an idea?...
http://www.dailymail.co.uk/pages/live/a ... ge_id=1965
By JENNY RIGTERINK
Last updated at 00:50am on 20th August 2007
It's every cyclist's nightmare - it's dark or getting that way, you have just given a hand signal, but will other road users have seen it?
Well, they will now, thanks to an innovative jacket with flashing indicators on the sleeves and brake lights in the back.
Its inventor Michael Chen has landed a design award for the high-tech coat and hopes to find a manufacturer to produce it on a mass scale.
Amber indicators are triggered to flash by a "tilt-switch" when the wearer raises their arm to give a hand signal.
And a device called an "accelerometer" is used to turn an LED, woven into the jacket's back, green when the rider is moving forward or red when they apply the brakes.
London-based Mr Chen, 28, got the idea watching cyclists in the capital. He said: "There is a lot of hostility from bus and cab drivers towards cyclists.
"Cyclists are brave. It is so dangerous without bike lanes. When I visited Korea last year, I noticed their cities had better bike lanes than London."