Comment by hasmanean
3 years ago
Signs are nice but the simplest way to know the speed is to store it in a database and look it up from position.
In fact roads should have barcoded position markers everywhere. That way you could navigate without gps and all road signs could become virtual. Just download a road marker update.
That's not really how speed limits work though. People take their cues from road design and conditions, not what the speed limit actually is. Virtually changing speed limits is dangerous because it causes you to think you are altering the behaviour of traffic without actually doing so.
https://youtu.be/bglWCuCMSWc?t=280 goes into detail on this
We could put GPS beacons on all pedestrians.
The sarcasm tags are missing.