Originally Posted by
mechBgon
People don't usually pull over and stop for emergency vehicles that are ahead of them.
The Dinotte taillight causes a large area to be brightly illuminated with red light. Vehicles approaching head on (from the front) see the loom of the tail light and pull over. It's happened to me numerous times.
Here's some pictures I fouond on the web that may help explain. I hope the owner doesn't mind my linking to them.
http://www.pbase.com/colorchange/general&page=3