Comment How is this different from the USA system (Score 1) 64
AFAIK in the USA cars give directly commands to traffic lights to turn the light green with infra red remote control.
The new system in Finland (HALI) on the other hand works like this:
1. The car receives GPS coordinates from the satellite
2. The car communicates the coordinates, moving angle and information for example about turn signals and hand brake via mobile network to the server
3. The server interprets this information to estimate where traffic lights need to switched and sends commands to traffic lights.
I think that one of the benefits of this system is that it can change lights before the car can see the traffic light.
Source (In Finnish):
https://www.theseus.fi/bitstre...