5 ms·
I think it's really funny how humans can't help but use round numbers. 30 kph = 18.64 mph 20 mph = 32.19 kph So safety rules around the world are based on ar
by badcppdev 3y ago
I think it's really funny how humans can't help but use round numbers.
30 kph = 18.64 mph
20 mph = 32.19 kph
So safety rules around the world are based on arbitrary length systems. I'm all for lower speed limits for safety but I feel there is still things to be worked out in suburban settings where long arterial(?) roads carry large amounts of traffic in large cities.
- turquoisevar 3y agoIt’s almost as if it’s based on what can be easily gleaned from a speedometer on the dashboard.
- arlort 3y ago2 km/h when you're reducing from 50 to 30 is a negligible difference, and round numbers are easier to keep to on analog/digital speed gauges, and easier to set manually on cruise control systems
- mcv 3y agoIt's not like anyone ever drives exactly that speed anyway. It's all approximations. We don't need 4 digits of precision here.
- Ylpertnodi 3y agoThat 'roundness' can be a pain. E-bikes are generally limited to an arbitrary 25kph (eu) - 5kph slower than a car at 30. Constantly in the way...it's one of two negatives I have regarding e-bikes: too slow for traffic, too fast for pedestrians/ shared paths.
- RektBoy 3y agoWhat do you mean, one system is SI units and other is, ehm how to put it kindly, weird for weird people.
- Adverblessly 3y agoIt is just that Americans are tougher people. That's why during the height of covid, Americans could safely stand 1.829 meters from each other without getting infected while the rest of the world required 6.5616 ft for the same level of safety.