11-21-2018, 06:55 AM | #61 | |
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But it achieves little to blame computer errors on programmers. It may be strictly true, but it doesn't help. (Remember the first part of that adage: to err is human. The errors are going to happen, accept it.) Even if/when we get AIs writing smarter AIs it should be feasible to trace an error back to a human programmer that should have foreseen a problem and put something in place to prevent it. But programming doesn't really work like that, and I doubt if it will even when AIs take over. We write little modules that our little brains can get their minds around, and then we put these modules together into larger and larger conglomerations. We have long since passed the point where a single human brain can contort its mind around how all the modules in a modern computer will interact. We now see errors showing up in code written decades ago - but they weren't all errors then, sometimes its just that the environment changed. So we are now down to test like mad and then suck it and see ... and sometimes it really sucks! |
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11-21-2018, 06:58 AM | #62 | |
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As the Volvo exec quoted above said, nobody wants to risk ruining it for everybody. Naysayers also neglect to consider that where human drivers are limited to visual cues and tactile feedback, robotrucks are loaded with a full range of sensors with greater range than anybody not named Matt Murdock. Radar, lidar, infrared, precision accelerometers, night vision cameras for the human monitors... One thing robotrucks will most assuredly be is defensive drivers, always looking out for crazy human drivers down the road. |
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11-21-2018, 07:27 AM | #63 | |
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11-21-2018, 07:57 AM | #64 |
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Roundabouts are perfectly fine for motorists, but they can be absolutely terrible for pedestrians.
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11-21-2018, 08:05 AM | #65 |
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11-21-2018, 08:52 AM | #66 | |
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Intersections may be bad for the flow of traffic in general, but their navigation is exactly the same the world over. There is no familiarity requirement. "When the light turns green, I'm going THAT way." The same cannot be said for roundabouts. Even if you're familiar with them in general, the new one you encounter may have intricacies that can't be anticipated. In my opinion, roundabouts over-complicate the decision-making process for minimal gains in traffic-flow efficiency. Last edited by DiapDealer; 11-21-2018 at 08:56 AM. |
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11-21-2018, 08:57 AM | #67 | |
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Then when you're actually on the roundabout, each exit is separately signed to its destination. So you look at the sign as you approach and note which exit you need, and then look for that destination again as you exit. Is the signage not similar in the US? Last edited by HarryT; 11-21-2018 at 09:09 AM. |
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11-21-2018, 09:09 AM | #68 |
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No, it's not similar (in my corner of the world anyway). To me, that sign looks like the symbol Prince changed his name for a while. It wouldn't help me unless I could stop and study it first.
For the record: I think roundabouts would make perfect sense in an AI controlled traffic pattern; just not a human one. They're not intuitive to a lot of people. Perhaps if we were all born somewhere they were commonplace it would be different. *shrug* |
11-21-2018, 09:14 AM | #69 |
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I don't recall ever seeing signs like that in any roundabout I have traversed.
The first time I encountered roundabouts was when I had to drive in New Jersey. I drove for miles, in the left lane, trying to make a U turn. Every intersection had a no U turn sign. I happened to look left and saw a roundabout with a small sign with an arrow that looped around. At the time I remember thinking "only in New Jersey do you have to turn right to turn left". Apache |
11-21-2018, 09:15 AM | #70 | |
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What do roundabout signs look like in the US? Ie how do you know which exit you need? Last edited by HarryT; 11-21-2018 at 09:34 AM. |
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11-21-2018, 09:41 AM | #71 | |
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What's especially annoying is when two of the roads coming up to the roundabout have different names. If the road you need is on the left, you might go right past it without realizing that this was it. |
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11-21-2018, 09:50 AM | #72 | |
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11-21-2018, 10:01 AM | #73 |
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11-21-2018, 10:21 AM | #74 | |
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11-21-2018, 10:25 AM | #75 |
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