Built into the door itself, a doppler range/velocity detector pointing towards the rear of the vehicle which is activated when the door starts to open. If the system detects an object (car, truck) approaching on a vector that intersects with the door, an alarm sounds.

If it detects a cyclist, a "Wait for it ... wait for it ... NOW !" recording is played.

That's it.
-- 8th of 7, Feb 22 2011

Alternative to "Wait for it" http://www.youtube....w7ur3iV6Z34#t=1m23s
[Jinbish, Feb 22 2011]

"splat" account uploaded to flickr!

//approacking //

// intestects // are you drunk?
-- po, Feb 22 2011


Thats approaching + whacking.
-- normzone, Feb 22 2011


that's just mean. you are a mean drunk...
-- dentworth, Feb 23 2011


Sp. fixed.

Your puny human touchscreen technology leaves a lot to be desired ...
-- 8th of 7, Feb 23 2011


[-] It would be funny only if the cyclist were carrying a vuvuzela.
-- sqeaketh the wheel, Feb 23 2011


What, you need more reasons to hate cyclists ?
-- 8th of 7, Feb 23 2011


An inefficient and expensive replacement for a door mirror.

Perfect. [+]
-- shapu, Feb 23 2011



random, halfbakery