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#281
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On Wed, 30 Sep 2015 02:48:23 +0100, Bill Wright wrote:
Tough Guy no. 1265 wrote: You may get done for dangerous driving if you are driving too slow for the conditions but that's not the same thing. It's exactly the same thing. If you're going under 30 on the motorway, people are going to be swerving round you, and you'll get done for it. I once did 40mph on the motorway as my bonnet had become loose and was threatening to fly up. I got about 50% of people hooting at me, especially the lorries. A policeman would no doubt have been rather annoyed. If you take a slow vehicle onto a dual carriageway you must have a yellow beacon clearly visible from the rear. It wasn't a slow vehicle, it was a broken fast vehicle. -- You need only two tools in life. WD-40 and duck tape. If it doesn't move and it should, use WD-40. If it moves and shouldn't, use the tape. |
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#282
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"Roderick Stewart" wrote in message ... On Wed, 30 Sep 2015 08:17:49 +0100, Ian Jackson wrote: It might well be possible to have a proper speed measuring device controlling a valve on a flexible tube filled with fluid tho. How long it would last on the road tho is a separate matter. Wouldn't it be simpler just to fit speed governers to cars? We managed it with steam engines, so we know there are no practical problems preventing it. All it would need is the will to do it. Unless is was linked to GPS, how would the governor know what limit to apply? If we can communicate images from Pluto, it cannot be beyond the wit of man to communicate a simple number from something by the roadside to the cars travelling along it, and why couldn't it also be linked to GPS if that would help? In the absence of individual speed limits, a governer with a single limit of 70mph would be better than nothing, and how would that work when you took your car across the channel where the legal maximum is 80 (or more) tim |
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#283
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In message , tim.....
writes "Roderick Stewart" wrote in message .. . On Wed, 30 Sep 2015 08:17:49 +0100, Ian Jackson wrote: It might well be possible to have a proper speed measuring device controlling a valve on a flexible tube filled with fluid tho. How long it would last on the road tho is a separate matter. Wouldn't it be simpler just to fit speed governers to cars? We managed it with steam engines, so we know there are no practical problems preventing it. All it would need is the will to do it. Unless is was linked to GPS, how would the governor know what limit to apply? If we can communicate images from Pluto, it cannot be beyond the wit of man to communicate a simple number from something by the roadside to the cars travelling along it, and why couldn't it also be linked to GPS if that would help? In the absence of individual speed limits, a governer with a single limit of 70mph would be better than nothing, and how would that work when you took your car across the channel where the legal maximum is 80 (or more) The number of drivers who are done for exceeding the 70 limit must be absolutely minuscule compared with those done for exceeding any of the other limits. -- Ian |
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#284
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On 27/09/2015 20:30, Bill Wright wrote:
Adrian wrote: But what've "half a million foreigners coming in" got to do with the price of fish? Apart from anything else, VERY few recent migrants will be buying properties. For those coming from outside the EU - over half of all migrants - they quite simply can't get mortgages unless they have ILR - which few will have. So they'll be put in social housing, or private rented accommodation. This will increase pressure on the lower end of the market, and the pressure will translate upwards. Or do you imagine that we have half a million properties sitting empty, every year, just awaiting the migrants? You can be quite sure that they won't be expected to live in tents. B'sides over half of all population growth in the UK is from the number of births outstripping the number of deaths. Of course, and that's a big factor. But take the immigrants out of the equation and the pressure is much less. Bill bill you do it so well, from disabled to curry and the largest no. of posts I've seen for a long time.You should think about writing for The Mail. |
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#285
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"Ian Jackson" wrote in message ... In message , tim..... writes "Roderick Stewart" wrote in message . .. On Wed, 30 Sep 2015 08:17:49 +0100, Ian Jackson wrote: It might well be possible to have a proper speed measuring device controlling a valve on a flexible tube filled with fluid tho. How long it would last on the road tho is a separate matter. Wouldn't it be simpler just to fit speed governers to cars? We managed it with steam engines, so we know there are no practical problems preventing it. All it would need is the will to do it. Unless is was linked to GPS, how would the governor know what limit to apply? If we can communicate images from Pluto, it cannot be beyond the wit of man to communicate a simple number from something by the roadside to the cars travelling along it, and why couldn't it also be linked to GPS if that would help? In the absence of individual speed limits, a governer with a single limit of 70mph would be better than nothing, and how would that work when you took your car across the channel where the legal maximum is 80 (or more) The number of drivers who are done for exceeding the 70 limit must be absolutely minuscule compared with those done for exceeding any of the other limits. what makes you think that? I drove past a Scamera van on an NSL yesterday they must be there in the hope of catching people doing silly numbers tim |
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#286
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Ian Jackson wrote:
In message , Roderick Stewart writes On Wed, 30 Sep 2015 06:02:27 +1000, "Rod Speed" wrote: So far no-one has managed to come up with a *physical* speed restriction (as opposed to a speed camera) which has no effect if you are well within the speed limit and only comes into effect if you exceed it. I'm sure some fluid in a flexible tube could be tuned to become rigid when hit with the force of a car exceeding 30 (or 20) but just remain liquid below that ... I don’t believe that. It might well be possible to have a proper speed measuring device controlling a valve on a flexible tube filled with fluid tho. How long it would last on the road tho is a separate matter. Wouldn't it be simpler just to fit speed governers to cars? We managed it with steam engines, so we know there are no practical problems preventing it. All it would need is the will to do it. Unless is was linked to GPS, how would the governor know what limit to apply? However, if one was applied, it would have to sense road speed, and not engine speed. Also, in an emergency situation, it would need to be able to be instantly and automatically overridden if the driver needed to accelerate beyond the limit setting (with maybe an automatic reset afterwards). My newly ordered Ford has just such a system. You can optionally engage a speed limiter. It claims to know the speed limit by having read the speed limit sign with its front facing camera. A sharp press of the accelerator overrides the limiter. It can be set to exceed the speed limit by a user selectable amount. Not sure if it handles the speed limits set by overhead signs on managed motorways. Newspaper reports said it was originally confused by the little speed limit signs stuck on the back of lorries, but a software fix is supposed to have cured this. Not got the vehicle yet, so no idea how well it works. I wonder how it works out the difference between mph and kph speed limit signs. Perhaps it uses the GPS to work out which country it is in. |
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#287
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"Dave Plowman (News)" wrote in message ... In article , Rod Speed wrote: The underground storage tanks have a finite life. Nope. Forgot you lived in a country where safety and human life is so cheap. You never could bull**** your way out of a wet paper bag. |
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#288
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On Wed, 30 Sep 2015 19:13:42 +0000 (UTC), Tweed
wrote: Ian Jackson wrote: In message , Roderick Stewart writes On Wed, 30 Sep 2015 06:02:27 +1000, "Rod Speed" wrote: So far no-one has managed to come up with a *physical* speed restriction (as opposed to a speed camera) which has no effect if you are well within the speed limit and only comes into effect if you exceed it. I'm sure some fluid in a flexible tube could be tuned to become rigid when hit with the force of a car exceeding 30 (or 20) but just remain liquid below that ... I don’t believe that. It might well be possible to have a proper speed measuring device controlling a valve on a flexible tube filled with fluid tho. How long it would last on the road tho is a separate matter. Wouldn't it be simpler just to fit speed governers to cars? We managed it with steam engines, so we know there are no practical problems preventing it. All it would need is the will to do it. Unless is was linked to GPS, how would the governor know what limit to apply? However, if one was applied, it would have to sense road speed, and not engine speed. Also, in an emergency situation, it would need to be able to be instantly and automatically overridden if the driver needed to accelerate beyond the limit setting (with maybe an automatic reset afterwards). My newly ordered Ford has just such a system. You can optionally engage a speed limiter. It claims to know the speed limit by having read the speed limit sign with its front facing camera. A sharp press of the accelerator overrides the limiter. It can be set to exceed the speed limit by a user selectable amount. Not sure if it handles the speed limits set by overhead signs on managed motorways. Newspaper reports said it was originally confused by the little speed limit signs stuck on the back of lorries, but a software fix is supposed to have cured this. Not got the vehicle yet, so no idea how well it works. I wonder how it works out the difference between mph and kph speed limit signs. Perhaps it uses the GPS to work out which country it is in. I started thinking about the mph versus kph problem after reading your second sentence. It could be interesting in Ireland where Northern Ireland has speed limits in mpg and the Republic has them in kph. -- Peter Duncanson (in uk.tech.digital-tv) |
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#289
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On Wed, 30 Sep 2015 17:58:50 +0100, "tim....."
wrote: In the absence of individual speed limits, a governer with a single limit of 70mph would be better than nothing, and how would that work when you took your car across the channel where the legal maximum is 80 (or more) If it couldn't be altered it would simply continue to limit the speed to 70mph, which would do nobody any harm at all. If such a scheme were ever implemented, there would inevitably be a transition period where there were vehicles with and without speed governers, and where not all roads were equipped to transmit the command signals for them. This would result in some situations not being optimal, but that should not be taken as a reason not to bother. Much the same would happen, as it always has happened, with any change to any system involving a lot of equipment used by a lot of people, such as the change from monochrome to colour television, or 4:3 to widescreen etc. Rod. |
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#290
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On Wed, 30 Sep 2015 09:02:27 +0100, Norman Wells wrote:
"Johnny B Good" wrote in message ... On Tue, 29 Sep 2015 11:15:23 +0100, Bill Wright wrote: James H wrote: MY Satnav and speedo' both give different readings. I suspect the Satnav is most accurate. I have two satnavs in use occasionally and they always agree on speed, and always say I'm doing a bit less than wot the speedo says. That's not unusual. There's virtually no chance of facing prosecution for supplying defective speedometers that over-read the speed by more than the +/-10% tolerance mandated by law but every chance that a speedometer that under-reads by more than the 10% allowance could result in the manufacturer facing a costly lawsuit. I think you'll find that the limits are in fact 0 to +10%, and that it's illegal to sell a vehicle with a speedo that under-reads at all. My apologies. I've just had a duckduckgo session and the wikipedia article on road vehicle speedometer accuracy confirms exactly what you've been telling me. Obviously, the regulations have changed since I last bothered to check them. :-( However, I don't think the practice of aiming for a +5% over- reading, +/-5% by the speedo manufacturers was altered by this change. After checking out speeding tolerances he https://en.wikipedia.org/wiki/Speed_limit_enforcement#Tolerances I spotted this piece of info which at least accounts for my original statements regarding the +/-10% speedo accuracy figure I was quoting. "As older vehicle construction regulations allowed a speedometer accuracy of +/- 10%, in the United Kingdom ACPO guidelines recommend a tolerance level of the speed limit "+10% +2 mph" (e.g., a maximum tolerance in a 30 mph (50 km/h) zone of 30 + (30 × 10% = 3) + 2 = 35 mph)" I was beginning to wonder whether my +/-10% figure was simply a figment of my imagination. :-) -- Johnny B Good |
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