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>If an autonomous car can't read speed limit signs and see stoplights (and doesn't have an up to date on-board map of them), then that system has no business be
by frgtpsswrdlame 8y ago
>If an autonomous car can't read speed limit signs and see stoplights (and doesn't have an up to date on-board map of them), then that system has no business being on the road.
Then you're kind of going against your original comment where you said you wanted self-driving vehicles on the road asap. All you have to do is google: Tesla Speed Sign and you'll find tons of problems and examples of Teslas misreading signs. Here are some examples:
My AP1 car has interpreted a 35 mph sign as an 85 mph sign.
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My understanding is AP1 visually identifies speed signs, but can screw up (reported that our highway 80 is misread as 80 mph)
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Addendum: a 45 mph zone, permanently signed (white/black sign large - not orange/black sign small), which by the way AP2 completely ignores. See error-ridden, and in this case an example that creates a safety/financial hazard not present with AP1.
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And on some highways in the area, especially where there has been recent construction, the speed limit database thinks the speeds are 45 or 50 MPH in sections - when the posted speed limit is supposed to be 60 or 65 MPH. If the car is running under AutoSteer when it hits one of these sections, the car immediately slows down, because AutoSteer won't exceed the speed limit by more than 5 MPH on non-highway roads.
https://forums.tesla.com/forum/forums/new-car-has-trouble-recognizing-speed-limit-signs https://forums.tesla.com/forum/forums/new-car-has-trouble-re...
>(and doesn't have an up to date on-board map of them)
This is also something that doesn't always happen in real life. Here's a quick example just from googling:
The "new" speed limit database distributed last summer (from TomTom?) has numerous areas with missing speed limit data or incorrect speeds (both high and low), which causes issues with AutoSteer. And if this happens while driving at highway speeds, AutoSteer will try to quickly slow down in the middle of high speed traffic. While you can disengage AutoSteer and retake control, the other option is just to temporarily leave AutoSteer/TACC running, and manage the speed yourself until the software sees it's back in an area with the correct speed limit.
https://forums.tesla.com/forum/forums/fooling-speed-limit-detection https://forums.tesla.com/forum/forums/fooling-speed-limit-de...
>But I'm assuming that low-hanging fruit like reading traffic signs and signals is a solved problem.
You know what they say about assumptions lol.
>Assuming that it isn't a solved problem is kind of irrational.
One, it has nothing to do with rationality. Two, it's actually not a solved problem.
>If your argument is "Well, maybe the car won't see the traffic light it already knows is there", then perhaps your argument isn't very good.
Or maybe the state of self-driving technology isn't actually as advanced as you believe. I'm glad we can agree that these systems have no business being on the road though.