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Such detailed database of fine grained road geometry gets stale very quickly, due to road maintenance and road construction. In US highway lanes are shifted sid
by tintor 5mo ago
Such detailed database of fine grained road geometry gets stale very quickly, due to road maintenance and road construction. In US highway lanes are shifted sideways frequently.
- dietr1ch 5mo agoBut are they not continuously updating the road database with their fleet?
- nomel 5mo agoFor common routes, yes. For getting to John's house, where the path there sometimes floods, no.
- harry8 5mo agoSo the first waymo to get to this less used road to john’s will not have the data rather than every waymo that travels down a new highway, that then becomes a problem if it rains. One car with an issue of first coincides with rain on a less used road?
- nomel 5mo agoWell, it's closer to: any car with stale data and sufficient water depth is a financial and PR disaster. These cars are not cheap, and a tiktok of someone being driven into the water is even more expensive!
- cma 5mo agoAs soon as the car descends below what was mapped it should be able to know there is a discrepency. Satellite monitoring is also available for detecting extensive road work which they could use to invalidate and send out something to remap.
- nomel 5mo agoSure, if you drive around slow enough so you can stop in time. Lets say coefficient of friction is around 0.5. That means you can drive around town at a brisk 12mph, if you need to stop within 10 feet (with 0ms reaction time).
- cma 5mo agoPeople usually drive slow too through flooded sections. They don't have the advantage of any descent of the car diverging from HD maps, or any water level visually below HD map surface serving as an immediate warning.
- nomel 5mo ago> drive slow too through flooded section This first requires knowing you're in a flooded section. That's the gap here, is it not? My point is that you can't use descent AS a "flooded zone" detection because then your speed, by the harsh mistress of psychics, is very limited everywhere you go, flooded or not, because stopping distance has to be kept very short since just a few feet of overshoot, when your flood detection triggers, is the difference between ruined engine or not. Maybe that's their fix, if a flat mirrored surface is detected, slow way down, because perceiving depth of muddy water before getting in it is hard.
- cma 5mo agoI'm assuming there is no issue detecting water over the road, only depth below it that has changed since the HD map was made.
- nomel 5mo agoAnd, we're full circle at this point.
- cma 5mo agoThey had an issue detecting them here. But my understanding was people were saying beyond seeing the flooded section there is a fundamental problem that they can never solve that if there is new construction under the flooded section lowering the level of the road they can never deal with that. But as long as it is not a sudden dip or sinkhole I think HD mapping can still help with that since they can monitor the cars altitude as it traverses it and detect divergence from what is mapped early.
- ChoGGi 5mo agoEarthquake or sinkhole?
- jjmarr 5mo agoI traveled to Austin 3 weeks ago and there were entire highways not on Google Maps. Apparently they were built in just a few months.
- bombcar 5mo agoThere's some places where Apple still thinks I'm driving through a cornfield even though the development is a few years old, now. I suppose I could inform them somehow, but it's not worth the bother.
- stavros 5mo agoI don't know how they don't notice thousands of users driving through these "cornfields" at 60mph every day, though. You'd have thought that'd raise some alert?
- bombcar 5mo agoI’ve literally watched my car (only car around) trigger the yellow heavy traffic warning (because I was driving slow to look for something). Yet thousands of cars doing 60 mph through a cornfield and over a river doesn’t trigger a “maybe a freeway was built here?”
- xethos 5mo agoAdvertising slightly heavier traffic isn't the worst thing in the world. Telling hundreds of motorists "There's a navigable road here" when there isn't, is a bigger problem, for both Apple's PR team, and the motorists in question Verifying indepenantly is probably the reasonable response
- NetMageSCW 5mo agoSeems like that would be easy to do with some current satellite imagery?
- 5mo ago
- Ajedi32 5mo agoPretty sure they already rely on such a database for positioning, so they already have that problem. But yes, this wouldn't work for other self-driving systems that don't rely on HD maps.