ISA is a well-proven technology that tells drivers what the speed limit is. If this is being exceeded, some ISA systems warn the driver by beeping. In other systems the accelerator either vibrates or offers resistance. In the future, ISA will be even more intelligent, taking into consideration such things as weather conditions or the traffic situation.
If everyone kept to the speed limit, more than 100 lives would be saved every year. A lower average speed even has other advantages, like less fuel consumption, which in turn leads to less carbon dioxide emissions.
ISA pamphlet
ISA supportive system (WMV file, 1 MB)ISA in general (WMV file, 2 MB)ISA informative (WMV file, 1 MB)