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| Thread ID: 110208 | 2010-06-07 19:40:00 | Lowest Road Toll in 50 Years! Good Policing or Good Luck? | xyz823 (13649) | PC World Chat |
| Post ID | Timestamp | Content | User | ||
| 1107907 | 2010-06-18 09:32:00 | speedometer calibration checks are all well and good, (except who does them out side of main cities) but its only calibrated to the set of tires you have and the condition they are in. wear changes the diameter of the tires, air pressure also changes it. to top it all off tires can often not be the size the manufacture claims they are so changing tires throws it all out again. | tweak'e (69) | ||
| 1107908 | 2010-06-18 21:07:00 | Hmm? I wasn't advocating lower speed limits. I was advocating people obey laws, and not just the laws they think matter (This seems to be a common opinion). As speed limits currently stand, they're woefully low in some areas and probably too high in others. It's the numerous situations where speed limits are too low that breed the attitude of 'come on mate, I was only going 10k over the speed limit' and pressure police into letting people off. I'm suggesting that we change speed limits in areas where they are too low, and then enforce the revised speed limits. As an added bonus this cuts out the need for police to exercise judgement after stopping someone (excuse me if I don't trust judgement from some police I've come across). Example: We have the same 100k speed limit on motorways as we do in the north section of the desert road. This is ridiculous. Increase motorway limits to 110-120k, reduce the limit on that bit of the desert road to 80. Realistically speeds on motorways aren't going to change, but people don't get used to driving 10-20 k over the speed limit. The problem is that the limits aren't set by the 85 percentile method. Which is the best way to set limits. Instead they are set by subjectively ticking boxes by some Govt official. And higher speeds don't mean more accidents as proven in Montana (USA) and Northern Territory in Australia. |
wmoore (6009) | ||
| 1107909 | 2010-06-18 22:13:00 | 120 KPH on New Zealands motorways lol, it would be carnage like the series Pacific on TV. NT hardly a good example (I lived there) when there is a crash at speed there its like a meatworks. |
prefect (6291) | ||
| 1107910 | 2010-06-18 22:19:00 | speedometer calibration checks are all well and good, (except who does them out side of main cities) but its only calibrated to the set of tires you have and the condition they are in. wear changes the diameter of the tires, air pressure also changes it. to top it all off tires can often not be the size the manufacture claims they are so changing tires throws it all out again. WRONG!!! Incorrect Tyre ( I am not American) sizes play only a small part of the problem with speedometer calibration in this country. The most observable inconsistancy of inaccurate speedometers is displayed in high speed or more correctly open limit road conditions. Tyre wear and pressures would account for errors of up to 3% between new and illegal worn tyres. Regards pressures if you have the wrong inflation then well what kind of driver does that make you? |
coldfront (15814) | ||
| 1107911 | 2010-06-18 23:01:00 | 120 KPH on New Zealands motorways lol, it would be carnage like the series Pacific on TV . NT hardly a good example (I lived there) when there is a crash at speed there its like a meatworks . New Zealand Motorways are a contradiction in the Term "Motorway" For a Start our "Motorways" are in effect two lane arterial roads across our citys with off ramps in close proximity . Secondly the lanes are to narrow . Theres is NO WAY you can make a comparison to our Motorways to that of another country with a higher speedlimit . You set a limit of 120kph on say the Jaffa Expressways and you can guarentee someone will want to go 140kph:D Second point 120kph is faster than the 115kph Limit of a proper UK Motorway or Dual Carriegeway . The speed is not the problem the stopping distance and amount of room to stop is the problem . Another example of "motorway" is the Hutt Motorway, 120kph :ban yea right Still comes down to the speedometer accuracy! when you got a wide veriance of percieved speed and everyone being right you have an increased risk of collision and impatiance in a confined section of road . |
coldfront (15814) | ||
| 1107912 | 2010-06-18 23:56:00 | 120 KPH on New Zealands motorways lol, it would be carnage like the series Pacific on TV. NT hardly a good example (I lived there) when there is a crash at speed there its like a meatworks. The point I was trying to make was that places were there was a higher speed limit, that was then reduced saw an increase in accidents. And of course there will be meatworks at 130km or 150km. |
wmoore (6009) | ||
| 1107913 | 2010-06-19 00:14:00 | New Zealand Motorways are a contradiction in the Term "Motorway" For a Start our "Motorways" are in effect two lane arterial roads across our citys with off ramps in close proximity. Secondly the lanes are to narrow. And not to mention the off ramps being too short as well. Theres is NO WAY you can make a comparison to our Motorways to that of another country with a higher speedlimit. You set a limit of 120kph on say the Jaffa Expressways and you can guarentee someone will want to go 140kph:D Second point 120kph is faster than the 115kph Limit of a proper UK Motorway or Dual Carriegeway. It seems now the average speed on UK motorways is now about 80MPH I get vans going past me at 90MPH. I think you could safely raise the limits to 110km on NZ motorways. The speed is not the problem the stopping distance and amount of room to stop is the problem. Another example of "motorway" is the Hutt Motorway, 120kph :ban yea right That is why you need to keep a safe following distance and adjusting your speed to match the conditions. Still comes down to the speedometer accuracy! when you got a wide veriance of percieved speed and everyone being right you have an increased risk of collision and impatiance in a confined section of road. When driving remember COAST. Concentration, Consideration, Courtesy, Observation, Anticipation, Awareness, Attitude, Space (your safety space all about you) and Two second rule, Time for journey & Time to react. Drive on the left. Make sure you can see and be seen. Keep a constant look out all around. Be aware of signs and regulations and why they are there. Be predictable. Recognise and anticipate danger and keep clear space from it. Always ensure that you can stop within the distance that you know is clear. Give courtesy, co-operation and space to others. Don't obstruct them. Never take risks, drive unfit or compete with others. Safety is paramount and far more important than priority. Take personal responsibility for your safety and the safety of those nearby. |
wmoore (6009) | ||
| 1107914 | 2010-06-19 05:00:00 | WRONG!!! Incorrect Tyre ( I am not American) sizes play only a small part of the problem with speedometer calibration in this country . The most observable inconsistancy of inaccurate speedometers is displayed in high speed or more correctly open limit road conditions . Tyre wear and pressures would account for errors of up to 3% between new and illegal worn tyres . Regards pressures if you have the wrong inflation then well what kind of driver does that make you? i disagree a bit there . firstly try finding a 4x4 tire that is actually the size the manufacture says it is . they can be all over the show . tire pressure changes rolling diameter a bit, more than what wear does . i might go check some of the ones we have here and see what the difference is . you say its only 3% error, thats only 2% off getting a ticket assuming you even have a correct speedo . of course the other curve ball in this is how many vehicles have the original sized tires on them ?? i can't recall ever owning any vehicle with stock sized tires on it . |
tweak'e (69) | ||
| 1107915 | 2010-06-19 12:49:00 | Point you made there tweak`e your TYRES are a safety point that YOU are responsible for, Although I do get your point and was withholding a direct pointer at 4x4 Remurera Tractor drivers as being the ones most likely to be crawling along do to an error on the speedo. 3% error relates to a NORMAL car tyre of 8mm wearing down to the legal tread depth. But until (as highlighted by consumer and the AANZ) a clear guidline is set for this country of a allowable speedometer differance between actual and read then this problem wont go away and it will continue to cause the issues we see on our roads dismissing a less than obvious problem within the cars we drive. |
coldfront (15814) | ||
| 1107916 | 2010-06-19 13:22:00 | This whole thing about speedo accuracy is a farce and a smoke screen. Christ some of the speedos I have had have been in gaga land, My model A which came out with 19" wheels well It had 16" wheels from 1934 V8. My Bedford camper has the original Smiths speedo but a late model 7 speed plus splitter Isuzu gearbox it says I am doing 40 mph when I am doing 60 mph. Did I get a speeding ticket with these speedos ? did I ****. If you get caught with a ticket caused by speedo accuracy I say man up and learn from it. Speed kills, the faster the speed the bigger the mess, and grow up peoples its not cool to smoke and its not cool to speed anymore. |
prefect (6291) | ||
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