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10-04-2011, 10:44 PM | #151 | |||||
Beautiful in Black
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I see dozens of extreme cases of tailgating (drivers following by less than a car length travelling at >100kph on the M4) every week, the point is it doesn't get policed. At that speed the tailgating driver has less than 0.2sec to respond to what's going on in front, this less than the average human reaction speed ... a 2 second gap (the minimum recommend in good conditions) at that speed is over 50m or half a football field - sadly too few drivers actually leave this sort of a gap Quote:
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10-04-2011, 10:50 PM | #152 | |||||
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Your friend needs to be more insistent with Hyundai, it is an ADR for a speedo to not under- read in a car of that age. Quote:
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Last edited by sudszy; 10-04-2011 at 11:04 PM. |
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10-04-2011, 10:58 PM | #153 | |||
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Strawmen again, no-one, certainly not me said you have to have your speedo calibrated, just obey the law regarding the speed you should travel at, how you achieve that is your problem/business, problems of older vehicles going faster than they should isnt something the rest of the public needs to put up with. I accept that some here own 25 year old cars, but drive them on the roads in an unfit state? well they deserve every criticism I can muster. I know all about driving older vehicles, the speedo drive and driven gears in the gearbox can wear and when that happens you can have a speedo that under - reads considerably, could be down to half the real speed. Should we let people in older cars do double the limit because of that, you know its ridiculous. Last edited by sudszy; 10-04-2011 at 11:06 PM. |
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10-04-2011, 11:09 PM | #154 | |||
Ich bin ein auslander
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Ok, for a start the reason he knows about the speed variation on his 3 year old car is because he asked me to follow him in an ambulance and confirm his speed using the MDT and satellite AVL, he is fighting with Hyundai regarding this. Also, if the build quality of cars sold in australia is so good and can be relied on so completely, why is it my $65,000 FPV Ute that was 3 months old periodically had a speedo that did not even work? As for you consideration on my figures in eyes off road times, do you seriously not believe that the time to move your eyes from the road to the speedo and focus could not be 1/2 second - 1 second, add 1 second to register the speed and then another 1/2 second -1 second to refocus on the road. Consider this, the reaction time it takes for you to register a hazard if you are looking at it is 1/2 second, and you are not trying to read something or moving your eyes. I think I was actually being a bit generous, but lets let the audience make up their own mind on who is more likely to be right. Also, I am sure the 70 year old man who slipped on the wet bathroom floor, the mother of the child who broke his arm at footy or the 40 year old lady with a recurrent leg infection were there through no result of poor road safety
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10-04-2011, 11:16 PM | #155 | |||
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Yep, police on the roads need to sort this bad behaviour out, though this behaviour and people being denied "their right to travel at over the speed limit" are closely linked. |
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10-04-2011, 11:22 PM | #156 | |||
Ich bin ein auslander
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Each time you move your view from one point to another, you effectively restart the acquisition, perception and reaction clock, but of course you already know that. By the way, I got that quote from here; http://www.sdt.com.au/safedrive-dire...NGDISTANCE.htm I have also seen the same figures in other areas including state government road safety literature (having done advanced driving courses in military, civilian and emergency services across 3 states I have seen a few).
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10-04-2011, 11:58 PM | #157 | ||
Beautiful in Black
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getting off my beef about tailgating for a moment - I'm not so sure a 2 second round trip for your eyes from the road to the speedo & back is practical nor necessary - no matter how good a driver you may be, an awful lot can happen in those 2 seconds
driving is a continual observational exercise and knowing what's out the front windscreen is just as important as knowing what's next to you, behind you, in your blind-spots & what your instrument panel is telling you, including your speed a glance down to the speedo & back taking all of half a second is all that's needed, sometimes you might have to double it up with a second glance - but these glances are all that's needed particularly if you drive the same car regularly, you know exactly where the speedo is, what it looks like & you should have a good feel for the speed you're actually doing so know where to expect the needle indicator (if that's your type of speedo) to be. It's not as though you need to determine if you're going 78kph or 79kph (the discussion on tollerances of speedos is testament to this) - in this case a quick glance can easily be used to determine you're travelling at just under 80kph & that's all that's needed ... a half-second glance vs a two second look? I know which I prefer - if you're not already doing it, try it out it's the same with the mirrors, only glances are necessary and doing them consistantly so you can 'build a picture' in ur mind of what's around you - and of course all this is much easier to do all this when you keep a nice healthy gap to the car in front
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11-04-2011, 12:05 AM | #158 | ||
Rob
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sudszy - the ADR regarding under reading speedo's was introduced in 2006. before that, within 10% either way was acceptible tolerance. you don't need to have a 25yr old car to have a perfectly legal car with a speedo that under reads. the problem now is the tolerances no longer allow for the drivers of these cars.
you keep accusing people of building strawmen, and yet you stick to the notion that if you obey the limits, you won't have an accident. irony much! |
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11-04-2011, 12:15 AM | #159 | ||
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I don't know why people try and and convince this sudszy moron that he is wrong. He knows he is wrong but loves the attention like all trolls do.
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11-04-2011, 04:16 AM | #160 | |||
Ich bin ein auslander
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Have a go at this reaction time test at this website: http://getyourwebsitehere.com/jswb/rttest01.html The best I could get was 0.2978 of a second with an average of just over 0.3 and my first attempt was about 0.34 of a second. Now think about it, I was already looking straight at it before I started it so my eyes had already focussed on it. When the green light comes on the longest delay was the image being picked up in my eyesight and my brain registering it and triggering the response, clicking the mouse button is the fast bit. The act of looking at your speedo involves the same process, that is recognising the visual input and processing the information, just that action will take very close to 0.5 seconds. Add time to move your look from the road to the speedo and then for your lenses to change focal point to closer image and you have more time. Then when you swap back to the road a similar amount of time is taken to move your look back, again change focal point and process the information until you are back to ready to respond to hazards. No one could do this whole process in under a second. That is the idea of the HUD, it puts the information in the drivers field of view and able to be recoginised in the peripheral vision. Try this, scroll to a random section of the page while you are looking at a point off to the distance, for example the far wall. Now turn your look to the computer and read the text in the front of the screen, notice how it is a bit blurry at first, that is because of the change in focal point. The lens in the human eye requires time to accommodate for that change and then the brain requires time to process the information. After all the training I have done involving reaction times etc and the knowledge of the processes involved from a physiological point of view, I can not see how anyone can go from adequately focussed on the road to the speedo, register the information and then focus back on the road and register information in under 2 seconds, certainly not one second. Perhaps my point of view is supported by the fact that I go to so many crashes where the statement "I only looked away for a second" are made. That is the main reason I am dead against even changing a song or answering a hands free phone whilst moving and in high risk areas.
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11-04-2011, 05:46 AM | #161 | ||||
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The time required to recognise a dangerous situation and physically respond to it is not the same thing as a peripheral awareness to simply confirm where the needle on your speedo is where you expect it to be. (its not the same as some random message warning light on your dash coming up and having to focus on some fine print and decipher what it is) That's why speedos are relatively large items and just the angle of the needle is a clue as to what it is reading. The brain has already ready for what type of info is going to be coming in before the peripheral glance is even taken. The physical aspect to apply either less or more throttle is not time spent looking away from the road either nor is it a critical whether this takes 0.2 secs or 5 secs. Quote:
Last edited by sudszy; 11-04-2011 at 06:01 AM. |
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11-04-2011, 05:59 AM | #162 | ||||
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Last edited by sudszy; 11-04-2011 at 06:23 AM. |
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11-04-2011, 07:37 AM | #163 | ||||||
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Let me make it quite clear, I don't dispute what you have learned, I just dispute that speedos and mirrors are completely different. Fair enough you see a shape in your mirror, the needle on most speedos is a different colour, we know where the guage starts and stops (ie min & max speeds), how can we not know how fast we're going...? As said, I don't necessarily agree with the cameras and what they represent, but I refuse to be told that it takes too long to look at a speedo. Most of us on here would have a rough idea of how fast they are going without even looking at a speedo, I don't know about you guys, but I do feel the difference when my car accelerates. I also know where on the pedal my foot needs to be positioned to ensure that I'm in the right ballpark with regard to speed. And some of you have been driving for a hell of a lot longer than I have.
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11-04-2011, 07:59 AM | #164 | |||||
Rob
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studies have also been done that show cameras can't save lives and they are nothing but cash cows. |
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11-04-2011, 09:20 AM | #165 | ||
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If you all read the original post.
The Premier of NSW, not some self appointed secret internet "expert", has stated that there will be an investigation into speed cameras and their effectiveness in reducing the road toll as opposed to raising revenue. This is will always upset a small part of the "pseudo academic expert" community as it may show that they were WRONG and that is the worst possible outcome as it would mean they were actually NOT experts at all. The more and more likely that they will be shown to be wrong the more and more they will thrash about using every and any debating or lobbying technique available (other than actual evidence) in the vane hope of bluffing some sort of support for their position. The irony is that since the dawn of time "academic experts" have been frustrated by reality inconveniently failing to support their theories. Some just accept this and move on while others just wander about find small communities on which to push their flawed thinking until finally they manage to bring together traditional opposition groups in an alliance against them. sudszy believes he is right. Not because of evidence, nor popular opinion but purely because there is no other way he could be. sudszy must be right because he can never be wrong........ |
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11-04-2011, 09:22 AM | #166 | |||
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we must have be speaking different levels of english. (they couldnt be the people that are more likely to accidents, risk taking behaviour, poor judgement, ill health? or are they just random?) Im sure Getcko will enlighten us. |
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11-04-2011, 09:36 AM | #167 | |||
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Perhaps he could come clean and put up exactly how the "audit" may be done and by whom. |
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11-04-2011, 09:40 AM | #168 | |||
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Whilst there are many philosophical differences aired here, I want to point out one that seems to be rarely if ever mentioned. Minor difference in road speed (like the 10% you mention) in an area where safe overtaking is possible is results in a much safer environment than many cars traveling at much the same speed. This is one reason why I am against unrealistically low speed limits. Cars traveling at the same speed will always be traveling together, if cars are allowed to separate the roads are safer. I am putting this forward as opinion based on 30 years of driving (some professional). |
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11-04-2011, 10:25 AM | #169 | ||
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The big issue here is the $$$$ the govt get. It corrupts them - no one can question that. It just turns it into a tax and has nothing to do with road safety.
I Don’t have a problem with cameras if they : 1)Remove the financial penalties. If getting caught by a camera meant you had to do a road safety course with the length of said course determined by the amount over the speed limit you were detected. 1) have a bit of common sense associate with them. If your caught doing 10 over on an empty road you get a warning - just like a real cop would do. The fact that the govt would be spending money on road safety (running the courses and cameras) would go some ways to making sure that road safety funds are used effectively (you can tell the RTA is getting too much money from this as they sponsor a bloody cricket team - speed blitz blues - tell me that that money is worthwhile). A side benefit of the course idea is that it costs everyone the same amount of their time and is much fairer ($150 fine for a millionaire is nothing) but 5 hours of someone’s time crosses all demographics Dont forget - write to your representatives - if they dont think you care that they are ripping every one off under the guise of road safty they wont change it. |
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11-04-2011, 11:45 AM | #170 | ||||
Beautiful in Black
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Rather it's a conscious decision made ahead of time and thus this reaction time simply doesn't apply & is not time your eyes are actually off the road.
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11-04-2011, 02:24 PM | #171 | |||
Rob
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i'll ask you again, what do you set your speed alert to? and have you ever heard it chime? |
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11-04-2011, 03:17 PM | #172 | |||
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160km/hr Sir It did go off recently, i thought it was the rev limiter warning, as it had gone off only seconds earlier in a lower gear. |
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11-04-2011, 03:31 PM | #173 | |||
Beautiful in Black
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11-04-2011, 04:46 PM | #174 | ||
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In regards to the time looking at speedo. I think most of us would only take 1 second to read the speedo. If we are on the highway and do not have cruise control we will probably be looking down at the speedo every 20 seconds to make sure that it has not creeped up to 111km/h.
A while ago I figured out a 1 second glace every 20 seconds means on a trip between Sydney and Brisbane you will be looking at your speedo for well over 30 mins. Imagine how many things you pass in 30 mins at highway speeds!!! |
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11-04-2011, 04:48 PM | #175 | |||
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At the limit you are fine, but 2kmh over and they will have you believe you are walking on death row. If 2km/h over is deadly. Why is the speed limit so close to a 'deadly' speed. |
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11-04-2011, 05:11 PM | #176 | |||
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How frequently do you check your side and review mirrors? This is the most ridiculous thing I have ever heard...who looks at their speedo every 20 seconds? No one. I'm sorry, but I'm starting to wonder if you really do drive??
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11-04-2011, 06:56 PM | #177 | |||
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Im sure there are many here who will tell you they are perfectly safe at 10km/h over, 15km/h over 20km/h over etc because they do it all the time haven’t had an accident in 15 years, or those that say I drive home ****ed every week, nothing ever happens Im fine. Hence the 1000s of people out there like yourself who don’t perceive any added risk in exceeding the limits, but the unfortunate reality is that the stats will tell us that as people push the limits, even marginally then accidents and their severity increase. Ben if you just drove on your own property, Id say fine do whatever you like, but you are out there on public roads doing 5-10km/h more, putting my family, everyone elses family at risk. |
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11-04-2011, 07:07 PM | #178 | |||
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Even the 85 percentile method of determining speed limits(not a great system for determining appropriate limits) bases its premise that the closer all traffic is to the mean speed then the less accidents will occur. This was recently demonstrated in Utah where the speed limit on the freeways was raised to 80mph, the accident rate changed little, which had many on forums like this jumping up and down saying faster is safer. But all that happened was Utah simply legalised what was already happening, the present limit wasnt being enforced and the law abiding people who were doing the limit of 60mph now travelled at closer to 80mph reducing the incidence of speed discrepancy related incidents, yet the accident/carnage rate remained the same as this was offset due to the the decrease in safety generated by the higher overall speed. |
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11-04-2011, 07:11 PM | #179 | |||
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11-04-2011, 07:26 PM | #180 | |||
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Yet to see any participation from this entity here, on a Ford Forum, that isn't trolling and thrashing against the tide ad nauseam. It would seem there's an agenda being pushed at every opportunity. The good news is they've already lost the first battle, with plenty more to come... There has been a change for the better and the reviews are underway, with the plans for reduced tolerances already scrapped. Get over it. |
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