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Railroads should absolutely use GPS. They also should supplement it with local transmitters, like aviation does. They should have lots and lots of local transm
by marcosdumay 2y ago
Railroads should absolutely use GPS. They also should supplement it with local transmitters, like aviation does.
They should have lots and lots of local transmitters.
- numpad0 2y agoRails has clever systems for locating trains by detecting circuit shorted by trains' wheels, no need to replace that with GPS. Besides railroads passes valleys and tunnels, GPS won't work anyway. The absolute last resort for trains is semaphores and mutexes based on physical tokens. Those concepts came from there, and were still used sometimes to this day. Doesn't sound high tech, but it works.