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Pocket GPS World :: View topic - More Speed Cameras but do the statistics bear scrutiny?
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More Speed Cameras but do the statistics bear scrutiny?
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jonrome
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Joined: May 06, 2006
Posts: 24

PostPosted: Sun May 03, 2009 10:19 am    Post subject: Camera lunacy Reply with quote

At the southern end of the M11 there is a 50mph speed limit enforced by a Gatso.
Fine at 8 a.m. when the traffic is probably doing less the 30 anyway but at 3 a.m. on a sunday morning when there is only one car on the road? What is there to have an accident with? A cyclist? A child running into the road? Of course not but it gets revenue for Gormless Brown & his cronies.
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culzean
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Joined: Aug 04, 2006
Posts: 54

PostPosted: Sun May 03, 2009 5:03 pm    Post subject: Reply with quote

i don't get how that works... ok, you may be using less fuel at one particular point but the fact that as you're driving slower means you'll be driving for longer therefore your engine will be running longer and using as much fuel...

MaFt

It ain't rocket science, time has nothing to do with fuel economy, if you notice it is 'miles per gallon', i don't see any reference to 'time' in there.
The fact that your engine is running longer makes no difference to the fact that it uses 1 gallon of fuel to cover 50miles.

Above about 30mph on most cars air resistance becomes a major source of wasted energy, most cars of a normal Cd rating have their peak fuel economy at between 50 and 60mph.

Also the efficiency of a washing machine is probably how much energy it takes to wash a full drum of clothes, no reference to time there either.
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