This article is from the Formula One Motor Racing FAQ, by mitchmcc@ultranet.com (Mitchell McCann) with numerous contributions by others.
The starting procedure was changed for 1996. The countdown
begins 17 minutes before the parade lap with a series of lights
and horns. The parade lap is started with a green light. The
cars proceed in grid order returning to their spots on the
starting grid. Transponders in the car signal to the officials
when all the cars are in position and the actual start procedure
begins. There are now five red lights and NO green light. The
five red lights will come on one at a time at one second
intervals. When the fifth light comes on the jump start system
is activated. At a pre-set, but unpublished interval, all five
red lights will go out and that is the signal to start. NB There
is no green light. This system eliminates the potential problem
of the red light going out but the green light failing to come
on. Such a situation has happened in the past and causes
enormous confusion and is potentially very dangerous. Also,
disabling the jump start system until immediately before the
start eliminated some of the bogus penalties we saw prior to 96
when the system was activated as soon as the car stopped.
 
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