[deftnerd]

They should let every electronic light have some infrared LEDs and come up with a standard communications protocol to allow for fast transfers of alerts without the overhead of image processing.

For example, emergency vehicles could be broadcasting their presence and speed.

Schoolbuses could be doing the same and also broadcast when they are letting children out. same with the blinking light on school zone signs.

[toomuchtodo]

Emergency vehicles already broadcast their presence to traffic signals:

http://en.wikipedia.org/wiki/Traffic_signal_preemption#Line-...

What you're looking for is something similar to ADS-B in aircraft, hopefully designed properly this time with encryption and authentication.