Ian,
I'm afraid that doesn't make sense, unless you're assuming that YOUR speedo is the only one that's not inaccurate at all.
I asked our local police force - Dyfed Powys Police - about their tolerances on speeding, and they said their cameras are set to 10% plus 2 mph, but an individual policeman with a 'gun' can book you for doing only 2 mph over the limit, and that different police forces have different tolerances, so you'd have to know what these were for each area, and where the boundaries were.
I am very careful not to speed, ever, and the only time I do it is when I've accidentally got confused because the limits keep changing on the same piece of road, but I've never been caught - yet!
Ally
Speeding in Switzerland
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How old is your car? 8) speedos are legally permitted to over-read by up to 10% (but not to under-read, at all) - modern cars are / should be pretty accurate.
The speedos in cars I've driven / ridden in recently were within 1 or 2mph of the GPS (on flat, straight roads) at any speed.
Go carefully - especially with French Autoroute limits being lowered in some areas lately... :shock:
2007 so coming three years, my comparisons are made between my speedo and the Tom tom and it seems to work out at a 10% difference, the french are much more civilised with their speed cameras I suppose they do not view them as a money making exercise, what I like about our french cousins is that if they put up a motor way sign warning of a speed camera you can be dam sure that there will be one.
As for the mobile guys only saw two for the whole duration of my 17 day holiday, perhaps I was driving too fast !!! but seriously it is one of the reasons I have my Tom tom on all the time in Europe it continuously reminds me if I am driving too fast . 8)
Oooiii you Columbian tea leaf have you been raiding my iphoto's..... :wink:
Wickers, does your Tom Tom have a speed cameras database?
We use a Blaupunkt Sat Nav, plus a couple of InfoRad´s. Between them, they get most of the fixed stuff. Naturally, a little creativity is needed for Switzerland :D We don´t go fast, but particularly in Switzerland it´s often hard to tell what the speed limit is on the motorway, as it´s constantly changing. Swiss Border police will confiscate Sat Nav´s with camera databases or GPS based camera detectors :roll:
Yep, mine has a speed camera database and he ( The jobs worth border guard ) at least was not interested in that, I guess it could have been very embarrassing for him if he was seen to not be able to get me on anything apart from having a speed camera database. I might even have been able to do him for harassment :evil:
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Started by Mike3000 in Ski Chatter 02-Aug-2009 - 47 Replies
AllyG
reply to 'Speeding in Switzerland' posted Aug-2009
Admin
reply to 'Speeding in Switzerland' posted Aug-2009
Ian Wickham wrote:taking into consideration that car speedos are approx. 10% inaccurate you should never get caught....
How old is your car? 8) speedos are legally permitted to over-read by up to 10% (but not to under-read, at all) - modern cars are / should be pretty accurate.
The speedos in cars I've driven / ridden in recently were within 1 or 2mph of the GPS (on flat, straight roads) at any speed.
Go carefully - especially with French Autoroute limits being lowered in some areas lately... :shock:
The Admin Man
Pablo Escobar
reply to 'Speeding in Switzerland' posted Aug-2009
speedos are legally permitted

AllyG
reply to 'Speeding in Switzerland' posted Aug-2009
I would think even a sat nav system wouldn't be totally accurate if you were going up and down hills (or mountains) because the mapping must be only 2-D.
So I rather think that means you'd be going faster than your sat nav system said, in the mountains, because you'd be travelling a greater distance, something like the hypotenuse on a triangle, and speed equals distance over time. But I've always been very bad at maths so I'd have to think about it.
I have noticed that my new Tom Tom says I'm going about 2 mph slower than I'd estimate using my speedo, on the flat. And I have a newish car (4 years old).
Ally
So I rather think that means you'd be going faster than your sat nav system said, in the mountains, because you'd be travelling a greater distance, something like the hypotenuse on a triangle, and speed equals distance over time. But I've always been very bad at maths so I'd have to think about it.
I have noticed that my new Tom Tom says I'm going about 2 mph slower than I'd estimate using my speedo, on the flat. And I have a newish car (4 years old).
Ally
Edited 1 time. Last update at 09-Aug-2009
Ian Wickham
reply to 'Speeding in Switzerland' posted Aug-2009
Admin wrote:Ian Wickham wrote:taking into consideration that car speedos are approx. 10% inaccurate you should never get caught....
How old is your car? 8) speedos are legally permitted to over-read by up to 10% (but not to under-read, at all) - modern cars are / should be pretty accurate.
The speedos in cars I've driven / ridden in recently were within 1 or 2mph of the GPS (on flat, straight roads) at any speed.
Go carefully - especially with French Autoroute limits being lowered in some areas lately... :shock:
2007 so coming three years, my comparisons are made between my speedo and the Tom tom and it seems to work out at a 10% difference, the french are much more civilised with their speed cameras I suppose they do not view them as a money making exercise, what I like about our french cousins is that if they put up a motor way sign warning of a speed camera you can be dam sure that there will be one.
As for the mobile guys only saw two for the whole duration of my 17 day holiday, perhaps I was driving too fast !!! but seriously it is one of the reasons I have my Tom tom on all the time in Europe it continuously reminds me if I am driving too fast . 8)
Ian Wickham
reply to 'Speeding in Switzerland' posted Aug-2009
Pablo Escobar wrote:speedos are legally permitted
Oooiii you Columbian tea leaf have you been raiding my iphoto's..... :wink:
Bandit
reply to 'Speeding in Switzerland' posted Aug-2009
Ian Wickham wrote:Admin wrote:Ian Wickham wrote:taking into consideration that car speedos are approx. 10% inaccurate you should never get caught....
How old is your car? 8) speedos are legally permitted to over-read by up to 10% (but not to under-read, at all) - modern cars are / should be pretty accurate.
The speedos in cars I've driven / ridden in recently were within 1 or 2mph of the GPS (on flat, straight roads) at any speed.
Go carefully - especially with French Autoroute limits being lowered in some areas lately... :shock:
2007 so coming three years, my comparisons are made between my speedo and the Tom tom and it seems to work out at a 10% difference, the french are much more civilised with their speed cameras I suppose they do not view them as a money making exercise, what I like about our french cousins is that if they put up a motor way sign warning of a speed camera you can be dam sure that there will be one.
As for the mobile guys only saw two for the whole duration of my 17 day holiday, perhaps I was driving too fast !!! but seriously it is one of the reasons I have my Tom tom on all the time in Europe it continuously reminds me if I am driving too fast . 8)
Wickers, does your Tom Tom have a speed cameras database?
We use a Blaupunkt Sat Nav, plus a couple of InfoRad´s. Between them, they get most of the fixed stuff. Naturally, a little creativity is needed for Switzerland :D We don´t go fast, but particularly in Switzerland it´s often hard to tell what the speed limit is on the motorway, as it´s constantly changing. Swiss Border police will confiscate Sat Nav´s with camera databases or GPS based camera detectors :roll:
Ian Wickham
reply to 'Speeding in Switzerland' posted Aug-2009
bandit wrote:Ian Wickham wrote:Admin wrote:Ian Wickham wrote:taking into consideration that car speedos are approx. 10% inaccurate you should never get caught....
How old is your car? 8) speedos are legally permitted to over-read by up to 10% (but not to under-read, at all) - modern cars are / should be pretty accurate.
The speedos in cars I've driven / ridden in recently were within 1 or 2mph of the GPS (on flat, straight roads) at any speed.
Go carefully - especially with French Autoroute limits being lowered in some areas lately... :shock:
2007 so coming three years, my comparisons are made between my speedo and the Tom tom and it seems to work out at a 10% difference, the french are much more civilised with their speed cameras I suppose they do not view them as a money making exercise, what I like about our french cousins is that if they put up a motor way sign warning of a speed camera you can be dam sure that there will be one.
As for the mobile guys only saw two for the whole duration of my 17 day holiday, perhaps I was driving too fast !!! but seriously it is one of the reasons I have my Tom tom on all the time in Europe it continuously reminds me if I am driving too fast . 8)
Wickers, does your Tom Tom have a speed cameras database?
We use a Blaupunkt Sat Nav, plus a couple of InfoRad´s. Between them, they get most of the fixed stuff. Naturally, a little creativity is needed for Switzerland :D We don´t go fast, but particularly in Switzerland it´s often hard to tell what the speed limit is on the motorway, as it´s constantly changing. Swiss Border police will confiscate Sat Nav´s with camera databases or GPS based camera detectors :roll:
Yep, mine has a speed camera database and he ( The jobs worth border guard ) at least was not interested in that, I guess it could have been very embarrassing for him if he was seen to not be able to get me on anything apart from having a speed camera database. I might even have been able to do him for harassment :evil:
Topic last updated on 09-August-2009 at 19:21