I always stay in first gear at a light. But both times I was stopped at a red light and the youngsters who were driving too fast, probably on the cell, said they didn't see in the middle of three lanes. The last one had to lock up his brakes and pulled out in front of the car next to me get out of the way. I now hit my brakes when I see anyone coming up to the light behind me even when stopped. I had a flashing light with LED's similar to yours but a cop stopped me and told me its illegal to have flashing lights that stay on when you have your brakes on. He told me if he saw me again he would give me a ticket. I have asked other cops and they told me, technically he is right but they understand why I have them and wouldn't stop me. So the farther they can see me the better. It seems to be what happens most in Fl, stopped and then hit because most four lane roads, whether in the cities or not are either 45 or 55 mph. In Orlando about 5 people have died from getting hit from behind in the last year.
Jim