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Watch This Tesla Drive Itself at the Press of a Button [video]
- MPSimmons 12y agoThat acceleration is a bit like a roller coaster that you can drive.
- zaroth 12y agoTruly not far from it... 0 - 60 in 3.2s = .85g
- hauget 12y agoThat looks amazing! But, if someone "gets funny" and paints a 25mph sign as 55, then what? Any countermeasures for this?
- goatforce5 12y agoWhat would a human do if they saw a 25mph changed to say 55mph?
- mkaziz 12y agoIf you see a crazy curve ahead, you would slow down
- ceejayoz 12y ago"That doesn't seem right", probably. We have a 55 mph zone near our house that anyone not from the area seems unable to believe (as it's a narrow, fairly winding two-lane road) and you get stuck behind them puttering along at 35 for a few miles.
- pyre 12y agoYou're driving along a road. The signs all say that the limit is 55mph. You pass a sign that says "55mph ends." Now what? [Note: The route to a friends house years ago did exactly this as you got away from developed areas.]
- scdlbx 12y agoIt varies state by state and can depend on what kind of road you are on. Most states define a default speed limit for roads and highways.
- johngalt 12y agoMost states have rules such as: "35mph unless otherwise posted".
- vertex-four 12y agoThe UK's rules for what to do when there isn't a sign: https://www.gov.uk/speed-limits https://www.gov.uk/speed-limits
- switch007 12y agoOf course there's the unofficial and regularly observed "I think this is 60, but I can't see (or have no idea what is) a NSL sign so I'm going to do 45-50 to be safe"
- ceejayoz 12y agoI had a Tom Tom about 5 years ago that knew the speed limit on major roads. I'd imagine Google et. al. are collecting that data even if it's not publicly available in their mapping APIs yet.
- pyre 12y agoHow do you think that they can predict route times? It might not be part of the UI, but I'd wager they've had the data for a long time. The accuracy of the data, though, might be a reason that they don't present any of that data as fact.
- danbruc 12y agoWait, what? Every navigation system I ever used showed the speed limit and was capable of giving a warning if you go to fast. And it is pretty accurate, usually maybe plus or minus a second of passing the sign. Road works or just recently altered speed limits will of course yield no or false displays but fourtunatly road works are obvious and they don't change speed limits every other day.
- tjoff 12y agoGoogle doesn't show it. I don't know if they are afraid of lawsuits or if they feel it to be a distraction or anything like that.
- runeks 12y ago> I'd imagine Google et. al. are collecting that data [...] They are. All phones who have Google Maps installed, and have enabled reporting (anonymous) position data (might be default on some phones) are helping Google both see if there's a traffic jam somewhere, and see what the actual driving speeds on the roads are (by sampling at a certain interval and seeing distance traveled over time). I happily contribute to this, I think it's a great idea to crowd-source traffic data. I do hope Google makes the data publicly available though.
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- jerf 12y agoThe sort of AI necessary to drive a car is not like conventional programming code. You already can not simply blindly trust a sign. As a human you're so used to converting bad signs into something meaningful or ignoring them, but it's just part of the base problem of driving, not some sort of special problem. The sign is merely one of a constellation of inputs already coming in, already contradictory (speed limit is 55, traffic is driving 65, road conditions should only be permitting about 35, what do you do? etc.).
- maxerickson 12y agoA similar situation that impacts humans is someone getting funny and removing a stop sign. I guess the traditional countermeasure is to restore the sign.
- danielweber 12y agoOops, I read this backwards. The car should use the minimum speed limit from its set of stored speed limit signs, rules about local roads, and what it sees. If the car sees a speed limit sign that's "too high," it should call back to the mothership for a proper investigation (by the autodrive maker or the local police or both). OLD POST (where I got your situation reversed): It _should_ drop to 25 mph, because maybe someone in authority put a real 25 mph sign there. Then they should investigate who did that. The countermeasure would be to take over the wheel. The eventual countermeasure would be to have the speed limit sign broadcast its number over radiowaves, which is of course still something people can mess with, but requires a higher bar than a can of glue.
- runeks 12y agoSomeone should try making a sign that says () { :; }; /usr/bin/media_play 'https://www.youtube.com/watch?v=dQw4w9WgXcQ'
- danielweber 12y agohttp://gizmodo.com/5498412/sql-injection-license-plate-hopes-to-foil-euro-traffic-cameras http://gizmodo.com/5498412/sql-injection-license-plate-hopes...
- higherpurpose 12y agoMaybe signs of the future should also have a QR code next to them for the real speed, just in case someone modifies the painted one. If they mess with the QR code too, then it should give a warning or something.
- ghshephard 12y agoSign the Speed Limit tangled with the GPS coordinates of the sign with a private key of the state. Place both the signature, GPS coordinates, and speed limit in the QR code.
- Florin_Andrei 12y agoYeah, in the future the number visible on the sign will be just a courtesy to humans. The authoritative piece of info will be electronic.
- deleted 12y ago[deleted]
- dave1619 12y agoI did a test ride of a P85D last night. It was breathtaking. The car explodes (silently) of course like a rocket. It feel much, much faster than a regular P85. Here's the test ride I took: https://www.youtube.com/watch?v=Qm5CQZalLg8 https://www.youtube.com/watch?v=Qm5CQZalLg8 It's difficult to explain in just words how fast 3.2 seconds is and I had a difficult time grasping it myself until I actually sat in a Tesla P85D and experienced it going from 0-60 in a blazing quick three seconds. It felt like a completely different (and much quicker) car than the previous single-motor P85. The car accelerates so quickly with so much force that I found myself in disbelief and awe. Tesla truly engineered an amazing new version of the Model S. This new dual-motor version of the Model S is available to order in the performance version and will be available in the 60kwh and 85kwh version vehicles in February. Overall, having an AWD dual-motor version expands the appeal of the Model S to more market segments, especially those in colder areas. And the addition of a dual-motor performance version catapults the P85D into the realm of a true super car. Also in an unexpected and shocking move, Elon Musk announced Tesla's Autopilot hardware at last night's event. Most people were expecting some trivial driver assist features like lane departure warning and adaptive cruise control. Further, in previous interviews Elon had alluded to Autopilot being ready by the end of 2015. But in last night's announcement, Elon outlined a 4-part Autopilot system that would allow for driving to become increasingly autonomous over time. The Autopilot system comprises of cameras, radar, sonar, and gps/navigation integration. At first, the system will allow for drivers to use Autopilot to keep in one's lane and to slow down or speed up depending on objects in front. Over time with software updates, Autopilot will allow for full autonomous driving from freeway on-ramp to freeway off-ramp. Autopilot will also allow for the car to be able to park itself or even for it to be summoned by the owner. In my test ride last night in a P85D, there was a brief section where we were able to see the car drive itself autonomously. The car followed the roads as it curved and also adjusted for speed limits. It also managed to change lanes by the driver just turning the signal light on. It was quite impressive. What's further impressive is that Autopilot is a feature that is now added on to the Tech Package at an additional minimal cost (new Tech package costs $4250 vs old Tech package costed $3750). This is a great deal and will make the car even more appealing to more people. Here's the official video from last night's presentation by Elon regarding dual-motor and Autopilot. The Autopilot description is especially interesting. https://www.youtube.com/watch?v=FZ6lZJWL_Xk https://www.youtube.com/watch?v=FZ6lZJWL_Xk (ps, for those interested I curate a weekly email newsletter called Tesla Weekly, http://teslaweekly.com http://teslaweekly.com, with the latest news regarding Tesla)