#61
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Handlebar rotation
On Fri, 7 Jul 2017 21:33:35 -0700 (PDT), Frank Krygowski
wrote: On Friday, July 7, 2017 at 11:25:19 PM UTC-4, John B. wrote: On Fri, 7 Jul 2017 12:26:16 -0400, Frank Krygowski wrote: I'm arguing against the currently fashionable superstition that a blinky taillight makes a practical difference in ordinary daylight. I've seen no decent evidence that it does. I've observed many dozens, perhaps hundreds, of riders with daytime blinkies. In no case did I spot the cyclist only because he had a blinky. In almost every case, I noticed the cyclist first and only later saw "Oh, he's running his magic blinky." Just like in this advertising photo: https://www.outsideonline.com/sites/...?itok=QBL2UTKO I saw that photo at least ten times before I wondered "So it's a bicyclist being passed by a car. What are they advertising?" I thought it was funny that they pretend you wouldn't see the rider unless he had the taillight under his saddle. Oh, and he's riding too far to the right. There's no way that car can give three feet of clearance without crossing the yellow line. That means the rider should make that clear by his lane position. Some time ago a group of cyclists passed me on a fairly straight section of road, normal day, no overcast or haze, and interestingly the one who was noticeably visible the longest was noticeable because he was wearing a pair of knee socks in a very lurid orange color. Long after blinkies could no longer be seen those bright orange legs going up and down were very noticeable. There's value in highlighting or spotlighting the alternating left-right-left motion of a human being. Our brains are hard-wired to detect that characteristic human motion. With bikes, this is most frequently done with pedal reflectors. They are very effective at night. I suppose day-glo socks or shoes would do the same job in daylight. I haven't heard of lighted pedals, but I'd bet they'd be very effective at night. Unfortunately the pedal reflectors don't seem to work very well. Or at least I can't remember ever seeing one while riding. But having said that I do suspect that bright colored jerseys and blinking lights fore and aft probably do increase one's visibility (or maybe noticiblity) although to what extent they decrease accidents is arguable. And that's one of my main points regarding these visibility enhancers. Does it matter if a motorist sees you from 2000 feet away instead of from 1000 feet away? I very much doubt it makes a practical difference in a significant number of cases. I don't believe that a specified distance is the answer other then "I hope he sees me before he hits me" :-) But I do believe that anything that makes the motorist notice the bicycle is an advantage. Whether a colorful jersey, flashing lights or flying a flag. But the parameters are pretty loose. What makes one noticeable riding down a dark, lonely, unlighted road at night is likely to be substantially different from what might be useful on a brightly lighted city boulevard with heavy traffic. I have, for the past year or so, been using flashing lights fore and aft when I ride very early in the morning, on my longer Sunday rides I like to get started about the time the sun peeps over the horizon, but honestly I have yet to notice any reaction from autos. The problem is that if the lights did make a difference I've never notice it, and probably never will as it would be "yet another car that didn't hit me" :-) Which is likely one of the problem with all bicycle safety devices. If it works he didn't hit you so how do you know that it worked. But "practical difference" and "significant numbers" make no difference to purchasers of magical trinkets. Those people are all about "Well, it _might_ help" and "It can't hurt" and "But what if the ONE example is YOU??" I suppose that's fine if they keep their superstitions to themselves. But some do not, as we've seen. well, after all, since I have discovered the secrets of perpetual motion why shouldn't I shout it from the roof tops. After all, if I don't, how will I make a buck from it? - Frank Krygowski -- Cheers, John B. |
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#63
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Handlebar rotation
On 2017-07-07 20:03, John B. wrote:
On Fri, 07 Jul 2017 07:41:02 -0700, Joerg wrote: On 2017-07-06 19:54, John B. wrote: On Thu, 06 Jul 2017 12:14:33 -0700, Joerg wrote: [...] I have never been hit from behind either but the number of close calls has noticeably decreased since I have bright rear lights. Mission accomplished. The best is, this was never very expensive to accomplish. Now you can stick the head in the sand again and pretend it ain't so :-) Well, I ride in what is generally considered the 2nd, or third, most chaotic traffic in the world and I have seen no evidence whatsoever, in the past 10 years or so, that a blinkie on a bike had decreased the number of close calls. I might also add that the number of all the "close calls" I have had can probably be counted on the fingers of one hand, perhaps without using the thumb. In fact I would suggest that if you are having more then a very few actual "close calls" riding in what would be classed as far less chaotic traffic then I normally ride in that the reason is not a blinking light, or lack thereof. It is. This is not hustling and bustling San Francisco, New York, Bangkok or Phuket. Here we have lots of high-speed county roads and thoroughfares where almost everyone drives 10-15mph above the speed limit and with various levels of distraction. How do you think all those "veered off the road, over-corrected and rolled over" accidents without the participation of any other traffic happen? But Joreg, we have big roads here too., My "new" Sunday ride is on a major route from Bangkok to the eastern seaboard. A 6 - 8 lane highway, limited access, high speed and still we don't seem to have the vast number of crashes that you seem to have in California. From the numbers I see, total traffic associated deaths in California were 3,074 in 2014. Bicycle deaths were 128, or 4.1% of all traffic deaths. Yes Sir! Bicycling is a dangerious pastime. As I wrote many times it is not only deaths that count. It is also the accidents with serious consequences. Also the close calls and I had my share of those including bailing off the road. Doesn't matter, I and the vast majority of riders out here prefer to ride where there isn't motorized traffic close by, or hardly any. My personal preference is singletrack. -- Regards, Joerg http://www.analogconsultants.com/ |
#64
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Handlebar rotation
On 2017-07-07 18:48, John B. wrote:
On Fri, 07 Jul 2017 07:33:58 -0700, Joerg wrote: On 2017-07-06 20:11, John B. wrote: On Thu, 06 Jul 2017 13:02:57 -0700, Joerg wrote: On 2017-07-06 12:40, Frank Krygowski wrote: On 7/6/2017 3:14 PM, Joerg wrote: On 2017-07-06 12:05, Frank Krygowski wrote: On 7/6/2017 10:54 AM, Joerg wrote: On 2017-07-05 17:49, John B. wrote: Yet people have been riding long distances on bicycles for years and years. The first Paris - Brest - Paris randonnée was held in 1891. An essentially non-stop bicycle ride of 1,200 km. The British, of course, do it better with the 1433 km London Edinburgh London 2017 and the 'mericans have the Boston-Montreal-Boston, again a 1,200 km ride but no longer an official randonnée and now strictly a permanent that anyone could ride on their own in a self-supported manner while still receiving recognition (validation) from Randonneurs USA. Think of it, 126 years of successful long distance bicycle riding without Joerg built lights. It's simple. Most humans have a habit of accepting current state-of-the-art as "that's as good as it gets". I don't, and I derive most of my income from not thinking that way. And yes, I already had bicycles with real electrical systems when I was a teenager. The detail you're missing is that people have always ridden _successfully_ without the systems you deem necessary. As I said, people got used to that this is all they are going to get. Just like people get used to walking in worn shoes if they can't afford new ones. There are always people who are into overkill. Some of those will claim or pretend that their favorite overkill item is actually a necessity. But that's disproven by every person who does well without the overkill item. A vehicle where the light does not go out or dim way down is IMO not overkill. The lighting "system" bicyles have would never pass muster at type certification for motor vehicles. There are good reasons why not. For just one example: I'm just back from another club ride. About 15 people were on the ride. Two of them had the newly fashionable daytime rear blinkies. This particular ride has occurred once per week every week except in winter for, oh, perhaps ten years. Nobody has ever been hit by a car, despite the thousands of person-miles ridden (GASP!) without blinkies. I have never been hit from behind either but the number of close calls has noticeably decreased since I have bright rear lights. Mission accomplished. The best is, this was never very expensive to accomplish. Now you can stick the head in the sand again and pretend it ain't so :-) We've been over this multiple times, but: If your number of close calls for hits-from-behind has gone way down, it must have been pretty high to begin with. By contrast, I almost never experience such a close call; therefore I'd never be able to see a big reduction. Why don't those close calls happen to me? Because those close calls are almost always due in part to rider error - specifically, inviting close passes by riding too far to the right. Yeah, right. The woman who rode in the lane on Blue Ravine died because of that. The other woman in the pickup truck who was drunk tried to evade but the lane was now too narrow and *BAM* [...] You mean to say that you were run into on Blue Ravine and died? Or this is just something that you saw on the TV? I didn't have an operation to turn me into a woman :-) It was shortly after we moved here about 20 years ago. That and several other serious accidents combined with (or rather, caused by) the lack of cycling infrastructure resulted in me and lots of others to mothball the bikes for many years. While those accidents were not always fatal many were what the medical folks call "life-changing" where riders became crippled for the rest of their lives. So what you are actually saying is that bicycles are dangerious. No, motor vehicles are. Or to be more precise, their operators. ... and as the U.S. notion seems to be that one must do everything possible to protect the poor consumer then logically these dangerious bicycles should be banned to protect society. If there is no willingness to enforce traffic rules regarding the fair treatment of cyclists, and in the US largely there isn't, then separating their traffic paths from those of motor vehicles is best. Some communities such as Folsom understand this while others like ours don't. But even so, www.statista.com reported to be something in the neighborhood of 66.52 million bicycle riders in Spring 2016.... and one woman died? That was one example of many. We have about one death a month in the area, on average. Many are hit from behind. Actually 726 died in the U.S. in 2014 ( the latest year I could find without looking very hard) and in 2014 the above site tells me that there were 67.33 million cyclists. So one cyclist was killed for every 10,096.4 that rode a bike. Obviously, statistically, bicycle riding is a very dangerious pastime! Perhaps the government should be encouraged to ban these dangerious devices. Save Lives! Ban a Bike! I read about them in our local paper and those are real stories, real people, real grieving families and all that. People like Justin Vega: http://fox40.com/2017/05/26/sacramen...d-25-year-old/ Certainly. But do you read in your local papers about the thousands, millions?, of bicycle riders who quite happily ride around with never an accident? Sure. However, the number of severe and fatal accidents per traveled mile is much higher for a cyclists than for a car driver. That's what matters. If I ride to Rancho Cordova in my car that is safer than cycling. Or used to be. Now much of the ride is possible via abandoned roads, dirt paths and bike paths. So now I use the road bike or MTB. Of course not as a happy, contented rider isn't newsworthy, it is the blood and guts strewn all over the road that makes the headlines. So, essentially, you are reading a media what dotes on death. And so, of course, you read about deaths. I know the statistics and those are facts. -- Regards, Joerg http://www.analogconsultants.com/ |
#65
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Handlebar rotation
On 7/8/2017 10:46 AM, Joerg wrote:
On 2017-07-07 13:14, Frank Krygowski wrote: I'm arguing against the currently fashionable superstition that a blinky taillight makes a practical difference in ordinary daylight. I've seen no decent evidence that it does. ... I have, big time. Therefore, mine is lit anytime you see my bike on roads. On bike paths I turn it off during the day. ... I've observed many dozens, perhaps hundreds, of riders with daytime blinkies. In no case did I spot the cyclist only because he had a blinky. In almost every case, I noticed the cyclist first and only later saw "Oh, he's running his magic blinky." Just like in this advertising photo: https://www.outsideonline.com/sites/...?itok=QBL2UTKO I meant at a much greater distance and also not some li'l Walmart blinky but a real light. Joerg, that taillight in the link is advertised as specifically designed to be used in daytime. They claim it's visible in daylight a mile away, but it's still not as visible as the rider himself. There I disagree. From experience, as a rider as well as a motorist. In our paper they mentioned a Danish study of many thousand cyclists where daytime light reduced accidents by 16%. I believe that. You have the right not to believe it. We've discussed that Danish study before. Perhaps you've forgotten. One gem was that the participants who applied to be in the study so they would be given the lights (um... no bias there, right?) also reported far fewer single bike crashes than those who were not given the free lights. In other words, they toppled off their bikes less. Understand, those lights given away were not "see the road" headlights that might show up road obstacles. Their spoke-driven blinkies intended as "be seen" lights. Now why would free "be seen" lights cause a reduction in simply toppling off a bike? Unless, that is, the people who applied to get the lights and vouch for... oops, "study" their effectiveness were simply being a lot more careful than normal riders? ... This is what I've seen time and again on the road, including with one guy I know who has an array of _three_ bright blinkies on his back rack. I think the people who brag about the purported benefits must be the same people who brag about how snapping their fingers keeps the elephants away. I saw that photo at least ten times before I wondered "So it's a bicyclist being passed by a car. What are they advertising?" I thought it was funny that they pretend you wouldn't see the rider unless he had the taillight under his saddle. Oh, and he's riding too far to the right. There's no way that car can give three feet of clearance without crossing the yellow line. That means the rider should make that clear by his lane position. And get a ticket in places like CA. And we've been over that issue many times. Previously I've posted citations of California law plus recommendations of CA bike safety organizations. They all disagree with you. You could try posting links to a bunch of stories about such tickets being given. If they're not imaginary, that is. You can only get out of it in court if the lane was not of sub-standard witdth and even then you have to find an attorney who defends you pro bobo or you will be out thousands more than the ticket cost. https://pvcycling.wordpress.com/2014...for-the-devil/ It is California Vehcile Code 21202 and a violation costs $197. https://www.ticketsnipers.com/traffi...c-ticket-fines Ok, head back in the sand now so you can pretend it ain't happening :-) I'd previously read about the illegal harassment on the PCH. It's why I included the phrase "links to a BUNCH of stories." I don't deny that harassment of cyclists happens from time to time. Here's another example, that I probably mentioned at the time. A local young engineer contacted me after encountering a certain cop as the engineer commuted to work by bike. The cop pulled him over and forced him to ride facing traffic. He was afraid of getting arrested so he did for about two blocks, but was so (justifiably) terrified of the results that he switched back to the proper side of the road. Our bike club began contacting people of influence in the police department. Turns out that cop was a known jackass with a record of stupid harassment, and bicyclists were the least of his victims. The cop was not respected by any of his peers. Meetings and discussions were held. They decided not to discipline him because he was due to retire in just a month or two, which he did. But the noise generated by the complaints certainly educated the rest of the police force - not that many needed that. The moral of the story? Yes, sometimes cops are stupid. Sometimes they get the laws wrong, and/or enforce imaginary laws. But THAT DOES NOT CHANGE THE LAW. The mistakes are generally corrected. If they are not, it really is the responsibility of the affected citizens to make the proper response. That sometimes includes finding a lawyer to help put things right. Joerg, if you really did get arrested for controlling a narrow lane, you need to grow a pair, challenge the abuses and hire a lawyer if necessary. Cowering in the gutter as you do belies all the machismo you try to make us believe. BTW, about the PCH, you need to read this: https://patch.com/california/malibu/...-a-deep-breath -- - Frank Krygowski |
#66
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Handlebar rotation
On 7/8/2017 3:20 PM, Joerg wrote:
On 2017-07-07 20:03, John B. wrote: Yes Sir! Bicycling is a dangerious pastime. As I wrote many times it is not only deaths that count. It is also the accidents with serious consequences. Also the close calls and I had my share of those including bailing off the road. Doesn't matter, I and the vast majority of riders out here prefer to ride where there isn't motorized traffic close by, or hardly any. My personal preference is singletrack. Wimp. -- - Frank Krygowski |
#67
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Handlebar rotation
On 2017-07-08 14:39, Frank Krygowski wrote:
On 7/8/2017 10:46 AM, Joerg wrote: On 2017-07-07 13:14, Frank Krygowski wrote: I'm arguing against the currently fashionable superstition that a blinky taillight makes a practical difference in ordinary daylight. I've seen no decent evidence that it does. ... I have, big time. Therefore, mine is lit anytime you see my bike on roads. On bike paths I turn it off during the day. ... I've observed many dozens, perhaps hundreds, of riders with daytime blinkies. In no case did I spot the cyclist only because he had a blinky. In almost every case, I noticed the cyclist first and only later saw "Oh, he's running his magic blinky." Just like in this advertising photo: https://www.outsideonline.com/sites/...?itok=QBL2UTKO I meant at a much greater distance and also not some li'l Walmart blinky but a real light. Joerg, that taillight in the link is advertised as specifically designed to be used in daytime. They claim it's visible in daylight a mile away, but it's still not as visible as the rider himself. There I disagree. From experience, as a rider as well as a motorist. In our paper they mentioned a Danish study of many thousand cyclists where daytime light reduced accidents by 16%. I believe that. You have the right not to believe it. We've discussed that Danish study before. Perhaps you've forgotten. One gem was that the participants who applied to be in the study so they would be given the lights (um... no bias there, right?) also reported far fewer single bike crashes than those who were not given the free lights. In other words, they toppled off their bikes less. Understand, those lights given away were not "see the road" headlights that might show up road obstacles. Their spoke-driven blinkies intended as "be seen" lights. Now why would free "be seen" lights cause a reduction in simply toppling off a bike? Unless, that is, the people who applied to get the lights and vouch for... oops, "study" their effectiveness were simply being a lot more careful than normal riders? Falling off a bike is not the main cause of injury or death. Colliding with motor vehicles is. ... This is what I've seen time and again on the road, including with one guy I know who has an array of _three_ bright blinkies on his back rack. I think the people who brag about the purported benefits must be the same people who brag about how snapping their fingers keeps the elephants away. I saw that photo at least ten times before I wondered "So it's a bicyclist being passed by a car. What are they advertising?" I thought it was funny that they pretend you wouldn't see the rider unless he had the taillight under his saddle. Oh, and he's riding too far to the right. There's no way that car can give three feet of clearance without crossing the yellow line. That means the rider should make that clear by his lane position. And get a ticket in places like CA. And we've been over that issue many times. Previously I've posted citations of California law plus recommendations of CA bike safety organizations. They all disagree with you. You could try posting links to a bunch of stories about such tickets being given. If they're not imaginary, that is. You can only get out of it in court if the lane was not of sub-standard witdth and even then you have to find an attorney who defends you pro bobo or you will be out thousands more than the ticket cost. https://pvcycling.wordpress.com/2014...for-the-devil/ It is California Vehcile Code 21202 and a violation costs $197. https://www.ticketsnipers.com/traffi...c-ticket-fines Ok, head back in the sand now so you can pretend it ain't happening :-) I'd previously read about the illegal harassment on the PCH. It's why I included the phrase "links to a BUNCH of stories." That's your usual answer when you run out of words. I could give 100 examples and then you'd say "But now I want 1000!". I've got no time for this nonsense, have to build a 3rd trunk for the MTB. At 100F that's no fun but I need it next week because of the 100F. [...] BTW, about the PCH, you need to read this: https://patch.com/california/malibu/...-a-deep-breath Nothing new here. -- Regards, Joerg http://www.analogconsultants.com/ |
#68
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Handlebar rotation
On Saturday, July 8, 2017 at 3:06:59 PM UTC-7, Joerg wrote:
On 2017-07-08 14:39, Frank Krygowski wrote: On 7/8/2017 10:46 AM, Joerg wrote: On 2017-07-07 13:14, Frank Krygowski wrote: I'm arguing against the currently fashionable superstition that a blinky taillight makes a practical difference in ordinary daylight. I've seen no decent evidence that it does. ... I have, big time. Therefore, mine is lit anytime you see my bike on roads. On bike paths I turn it off during the day. ... I've observed many dozens, perhaps hundreds, of riders with daytime blinkies. In no case did I spot the cyclist only because he had a blinky. In almost every case, I noticed the cyclist first and only later saw "Oh, he's running his magic blinky." Just like in this advertising photo: https://www.outsideonline.com/sites/...?itok=QBL2UTKO I meant at a much greater distance and also not some li'l Walmart blinky but a real light. Joerg, that taillight in the link is advertised as specifically designed to be used in daytime. They claim it's visible in daylight a mile away, but it's still not as visible as the rider himself. There I disagree. From experience, as a rider as well as a motorist. In our paper they mentioned a Danish study of many thousand cyclists where daytime light reduced accidents by 16%. I believe that. You have the right not to believe it. We've discussed that Danish study before. Perhaps you've forgotten. One gem was that the participants who applied to be in the study so they would be given the lights (um... no bias there, right?) also reported far fewer single bike crashes than those who were not given the free lights. In other words, they toppled off their bikes less. Understand, those lights given away were not "see the road" headlights that might show up road obstacles. Their spoke-driven blinkies intended as "be seen" lights. Now why would free "be seen " lights cause a reduction in simply toppling off a bike? Unless, that is, the people who applied to get the lights and vouch for... oops, "study" their effectiveness were simply being a lot more careful than normal riders? Falling off a bike is not the main cause of injury or death. Colliding with motor vehicles is. Car collisions account for about a third of all bicycle related injury accidents nationally -- meaning two-thirds are not car-related. http://www.pedbikeinfo.org/data/factsheet_crash.cfm When was the last time you were hurt on a bike? Were you hit by a car? -- Jay Beattie. |
#69
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Handlebar rotation
On Sat, 08 Jul 2017 07:46:25 -0700, Joerg
wrote: On 2017-07-07 13:14, Frank Krygowski wrote: On 7/7/2017 1:59 PM, Joerg wrote: On 2017-07-07 09:26, Frank Krygowski wrote: On 7/7/2017 10:26 AM, Joerg wrote: On 2017-07-06 19:34, wrote: On Thursday, July 6, 2017 at 1:02:53 PM UTC-7, Joerg wrote: On 2017-07-06 12:40, Frank Krygowski wrote: On 7/6/2017 3:14 PM, Joerg wrote: On 2017-07-06 12:05, Frank Krygowski wrote: On 7/6/2017 10:54 AM, Joerg wrote: On 2017-07-05 17:49, John B. wrote: Yet people have been riding long distances on bicycles for years and years. The first Paris - Brest - Paris randonnée was held in 1891. An essentially non-stop bicycle ride of 1,200 km. The British, of course, do it better with the 1433 km London Edinburgh London 2017 and the 'mericans have the Boston-Montreal-Boston, again a 1,200 km ride but no longer an official randonnée and now strictly a permanent that anyone could ride on their own in a self-supported manner while still receiving recognition (validation) from Randonneurs USA. Think of it, 126 years of successful long distance bicycle riding without Joerg built lights. It's simple. Most humans have a habit of accepting current state-of-the-art as "that's as good as it gets". I don't, and I derive most of my income from not thinking that way. And yes, I already had bicycles with real electrical systems when I was a teenager. The detail you're missing is that people have always ridden _successfully_ without the systems you deem necessary. As I said, people got used to that this is all they are going to get. Just like people get used to walking in worn shoes if they can't afford new ones. There are always people who are into overkill. Some of those will claim or pretend that their favorite overkill item is actually a necessity. But that's disproven by every person who does well without the overkill item. A vehicle where the light does not go out or dim way down is IMO not overkill. The lighting "system" bicyles have would never pass muster at type certification for motor vehicles. There are good reasons why not. For just one example: I'm just back from another club ride. About 15 people were on the ride. Two of them had the newly fashionable daytime rear blinkies. This particular ride has occurred once per week every week except in winter for, oh, perhaps ten years. Nobody has ever been hit by a car, despite the thousands of person-miles ridden (GASP!) without blinkies. I have never been hit from behind either but the number of close calls has noticeably decreased since I have bright rear lights. Mission accomplished. The best is, this was never very expensive to accomplish. Now you can stick the head in the sand again and pretend it ain't so :-) We've been over this multiple times, but: If your number of close calls for hits-from-behind has gone way down, it must have been pretty high to begin with. By contrast, I almost never experience such a close call; therefore I'd never be able to see a big reduction. Why don't those close calls happen to me? Because those close calls are almost always due in part to rider error - specifically, inviting close passes by riding too far to the right. Yeah, right. The woman who rode in the lane on Blue Ravine died because of that. The other woman in the pickup truck who was drunk tried to evade but the lane was now too narrow and *BAM* Well, Frank is right. Bicycles offer a far smaller target and if you wear bright clothing so that you don't catch drivers unaware you're pretty safe. AFAIR she had a bright jersey on. Unless you ride in an area and at times drunk drivers are on the road. Not just those, also texting ones and more recently stoned drivers. I found that lights are far better than any neon-colored jersey. Someone with 1/2 watt LEDs that do a police cruiser spiel like mine can be seen from half a mile away and gets the attention. End of this video: https://www.youtube.com/watch?v=KI3iZ-Ch7pY The end of that video shows the bike light indoors in a dark room. Nobody here is saying that taillights are not valuable in the dark. In fact, I think they should be a legal requirement after dark. (Currently, only about three states require them instead of reflectors.) I'm arguing against the currently fashionable superstition that a blinky taillight makes a practical difference in ordinary daylight. I've seen no decent evidence that it does. ... I have, big time. Therefore, mine is lit anytime you see my bike on roads. On bike paths I turn it off during the day. ... I've observed many dozens, perhaps hundreds, of riders with daytime blinkies. In no case did I spot the cyclist only because he had a blinky. In almost every case, I noticed the cyclist first and only later saw "Oh, he's running his magic blinky." Just like in this advertising photo: https://www.outsideonline.com/sites/...?itok=QBL2UTKO I meant at a much greater distance and also not some li'l Walmart blinky but a real light. Joerg, that taillight in the link is advertised as specifically designed to be used in daytime. They claim it's visible in daylight a mile away, but it's still not as visible as the rider himself. There I disagree. From experience, as a rider as well as a motorist. In our paper they mentioned a Danish study of many thousand cyclists where daytime light reduced accidents by 16%. I believe that. You have the right not to believe it. Did you read the entire survey study? Actually read the study findings? The test was designed, and did, influence the Danish government to change the law and allow always on lighting systems. It used an always on light system compared with a rider controlled system and the lights were tiny little lights mounted on the forks. The test riders were collage students that were enlisted to participate in the test. I would have guessed is that a survey of red streamers on the handle bar ends would have demonstrated the same thing. But why bother. As you California Boys describe it blinding bright light will cause automobile to come to a full stop, or swerve off the roads, to let you go by, a phenomena that, to date, nobody else, in a number of different countries, has described. As I previously wrote, "Only in California". -- Cheers, John B. |
#70
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Handlebar rotation
On Sat, 08 Jul 2017 15:07:08 -0700, Joerg
wrote: On 2017-07-08 14:39, Frank Krygowski wrote: On 7/8/2017 10:46 AM, Joerg wrote: On 2017-07-07 13:14, Frank Krygowski wrote: I'm arguing against the currently fashionable superstition that a blinky taillight makes a practical difference in ordinary daylight. I've seen no decent evidence that it does. ... I have, big time. Therefore, mine is lit anytime you see my bike on roads. On bike paths I turn it off during the day. ... I've observed many dozens, perhaps hundreds, of riders with daytime blinkies. In no case did I spot the cyclist only because he had a blinky. In almost every case, I noticed the cyclist first and only later saw "Oh, he's running his magic blinky." Just like in this advertising photo: https://www.outsideonline.com/sites/...?itok=QBL2UTKO I meant at a much greater distance and also not some li'l Walmart blinky but a real light. Joerg, that taillight in the link is advertised as specifically designed to be used in daytime. They claim it's visible in daylight a mile away, but it's still not as visible as the rider himself. There I disagree. From experience, as a rider as well as a motorist. In our paper they mentioned a Danish study of many thousand cyclists where daytime light reduced accidents by 16%. I believe that. You have the right not to believe it. We've discussed that Danish study before. Perhaps you've forgotten. One gem was that the participants who applied to be in the study so they would be given the lights (um... no bias there, right?) also reported far fewer single bike crashes than those who were not given the free lights. In other words, they toppled off their bikes less. Understand, those lights given away were not "see the road" headlights that might show up road obstacles. Their spoke-driven blinkies intended as "be seen" lights. Now why would free "be seen" lights cause a reduction in simply toppling off a bike? Unless, that is, the people who applied to get the lights and vouch for... oops, "study" their effectiveness were simply being a lot more careful than normal riders? Falling off a bike is not the main cause of injury or death. Colliding with motor vehicles is. Wrong again. From http://www.aafp.org/afp/2001/0515/p2007.html "The precise contribution of rider errors (losing control, speed, performing stunts, inexperience), motorist errors, environmental hazards (objects in the road, loose gravel) or bicycle mechanical failure in causing bicycle crashes is unclear, although they are probably all significant. Faster riding speed does appear to be associated with serious injury, fatality and mountain-biking crashes. The role of other factors such as distance of trip, duration of ride and sidewalk riding is also not clear." But you did read the reference to speed and MTB crashes. If cars are at fault they must be pretty small to roar around on those narrow mountain trails smashing bicycles. On the other hand apparently you California Boys know something that the professionals don't know. -- Cheers, John B. |
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