Kimi Pass connects Osaka and Wakayama, and on the downhill curve on the Osaka side,
there's a section with a speed limit of 4 km/h.
↑This left corner here.
By the way, it's around 4 AM, but
don't worry about that.
↑4 km/h
This makes me worry whether some half-baked AI-equipped autonomous vehicle
that reads and obeys road speed signs (well, an actual car)
might suddenly decelerate to 6.4 km/h (※) and spin out or crash,
causing some absolutely idiotic singularity to occur.
※Note to parents:
The part where it confuses kilometers and miles is also a delightfully interesting detail.
"Hey, this is probably just the zero from a 40 km/h sign
that got worn away by friction from car tires!"
you might say.
Well, that's probably true, but...
Looking at the 40 km/h markings on the same Kimi Pass (all of these are on the uphill side),
you can see it would be pretty difficult for just one digit
to cleanly disappear like that from either position.
That 4 km/h corner must have some ridiculously precise conditions where
the tires wear away only the top part of one digit.
I'd think downhill signs get worn less by tires than uphill ones,
but since it's a downhill corner where you brake
and twist the tires against the road surface with steering inputs,
maybe the combination of conditions causes the markings to wear as much as,
or even more than, the uphill sections.
Or maybe I'm overthinking it, and it really is a genuine 4 km/h speed limit.
there's a section with a speed limit of 4 km/h.
↑This left corner here.
By the way, it's around 4 AM, but
don't worry about that.
↑4 km/h
This makes me worry whether some half-baked AI-equipped autonomous vehicle
that reads and obeys road speed signs (well, an actual car)
might suddenly decelerate to 6.4 km/h (※) and spin out or crash,
causing some absolutely idiotic singularity to occur.
※Note to parents:
The part where it confuses kilometers and miles is also a delightfully interesting detail.
"Hey, this is probably just the zero from a 40 km/h sign
that got worn away by friction from car tires!"
you might say.
Well, that's probably true, but...
Looking at the 40 km/h markings on the same Kimi Pass (all of these are on the uphill side),
you can see it would be pretty difficult for just one digit
to cleanly disappear like that from either position.
That 4 km/h corner must have some ridiculously precise conditions where
the tires wear away only the top part of one digit.
I'd think downhill signs get worn less by tires than uphill ones,
but since it's a downhill corner where you brake
and twist the tires against the road surface with steering inputs,
maybe the combination of conditions causes the markings to wear as much as,
or even more than, the uphill sections.
Or maybe I'm overthinking it, and it really is a genuine 4 km/h speed limit.