From: Twibil on 6 Jul 2010 02:17 On Jul 5, 9:10 pm, Ben Kaufman <spaXm-mXe-anXd-paXy-5000- doll...(a)pobox.com> wrote: > > > >> The brain "sees" a car pointed in the correct direction in the middle of the > >> highway and it doesn't immediately register a problem. > > >It sure does if you have depth perception and are paying attention to > >what you're doing. > > Depth perception does not give you the speed of an object. Huh? I can't speak for *you*, but it sure does for me and for everyone else I've ever met! If it *didn't*, then how would anyone tell how fast they were closing on anything? Or vice-versa? > You need to take > multiple samples to determine you are going faster than a car ahead of you and > even longer to realize it is not moving. No you don't. It only takes a fraction of a second for your eyes to determine your closure rate, and another fraction of a second to start applying the brakes. And if you *can't* determine how fast you're closing on any object almost instantly, then you're either closing on it very slowly, it's too far away to be dangerous, you're simply not paying attention, or there's something badly wrong with your eyes. In fact, if you can't do the above, you shouldn't be riding. Or driving at all, for that matter. Because everyone else *can*.
From: Bob Myers on 6 Jul 2010 15:22 Ben Kaufman wrote: > Do you agree that stopping a car in the middle of the highway creates > a dangerous situation? > > Do you agree that if she had not stopped her car in the middle of the > highway that this accident would never have happened? Oh, FFS.... Do you agree that having, say, a car-sized boulder fall off the side of a mountain a stop in the middle of a road creates a dangerous situation? Do you agree that if the boulder hadn't fallen, a hypothetical accident involving it would not have happened? OK, now let's extend that to a car that for some reason stalls just around a curve, without sufficient shoulder for the driver to get it completely off the road. Or, let's say, a line of cars stopped due to construction going on. Bottom line - it really doesn't matter how a Big Solid Stopped Object winds up in the middle of the road. It is the responsibility of any driver/rider to be aware of what's ahead of them, and to avoid collision with anything you are approaching from the rear. You are never ever assured of a clear road ahead of you; you HAVE to use your eyes, and to correctly regulate your speed for the conditions at the moment (including just how much of that "road ahead of you" you can see). Period. Bob M.
From: Ben Kaufman on 7 Jul 2010 17:42 On Tue, 06 Jul 2010 00:49:08 -0400, "J. Clarke" <jclarke.usenet(a)cox.net> wrote: <SNIP older parts> >>> In more than 40 years of driving and riding, and more than that of being >>> a passenger in highway vehicles, I do not recall a car in the road in >>> front of me ever being other than highly visible. >> >> How would you recall something that you didn't notice? > >If one does not notice cars in the road in front of one one does not >survive 40 years on the roads. > That's if you *never* noticed cars in front of you, which is not what I said. >>> If you can't see a >>> car in front of you in broad daylight you should not be operating motor >>> vehicles. >>> >> >> It's not a question of seeing, it's a matter of the unexpected registering in >> the brain. > >If a car in front of you does not register in your brain then you should >not be driving. It's not black and white. It's a question of how fast it registers. > >> This is why they sometimes have warning signs with flashing >> lights that there is a traffic light or stop sign coming up on some roads. > >Generally those are used when the sign or lights are around a blind curve. > No, I've also seen plenty of them on straight roads too, especially near schools or when a highway is going to end. >Seriously, you're arguing like Ralph Nader or some other New Yorker who >has never actually operated a motor vehicle once in his life. > Ad Hominem is not going to do it. <SNIP older parts>
From: Twibil on 7 Jul 2010 18:28 On Jul 7, 3:03 pm, Ben Kaufman <spaXm-mXe-anXd-paXy-5000- doll...(a)pobox.com> wrote: > > > Depth perception tells you how far away something is, not how fast it's moving. Ben, I'm a retired racer and track instructor. I know how quickly the normal human eye can judge speed differences, and I know that because I rely on exactly that ability for my survival every single time I climb on my bike. There is no possible way that the normal human reaction time for judging closing rates can cause a biker to rear end a car stopped on the road ahead of him unless he was (A) going *way* too fast for conditions, or (B) was simply not paying attention. And that's all there is to it. You can look for excuses as to why that accident wasn't the biker's fault for the next six months, and that will *still* be all there is to it.
From: J. Clarke on 7 Jul 2010 19:59
On 7/7/2010 5:42 PM, Ben Kaufman wrote: > On Tue, 06 Jul 2010 00:49:08 -0400, "J. Clarke"<jclarke.usenet(a)cox.net> wrote: > > <SNIP older parts> >>>> In more than 40 years of driving and riding, and more than that of being >>>> a passenger in highway vehicles, I do not recall a car in the road in >>>> front of me ever being other than highly visible. >>> >>> How would you recall something that you didn't notice? >> >> If one does not notice cars in the road in front of one one does not >> survive 40 years on the roads. >> > > That's if you *never* noticed cars in front of you, which is not what I said. I've never not noticed a car in front of me. >>>> If you can't see a >>>> car in front of you in broad daylight you should not be operating motor >>>> vehicles. >>>> >>> >>> It's not a question of seeing, it's a matter of the unexpected registering in >>> the brain. >> >> If a car in front of you does not register in your brain then you should >> not be driving. > > It's not black and white. It's a question of how fast it registers. If it doesn't register when you see it then it registers too late. >>> This is why they sometimes have warning signs with flashing >>> lights that there is a traffic light or stop sign coming up on some roads. >> >> Generally those are used when the sign or lights are around a blind curve. >> > > No, I've also seen plenty of them on straight roads too, especially near schools > or when a highway is going to end. I've never seen a traffic light or stop sign warning near a school or where a highway is going to end. I've seen flashing lights that indicate a school zone or that the highway is going to end though. > >> Seriously, you're arguing like Ralph Nader or some other New Yorker who >> has never actually operated a motor vehicle once in his life. >> > > Ad Hominem is not going to do it. No, but your singular inability to see motor vehicles in the road in front of you eventually will. |