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Paris restricts car use after pollution hits high
http://www.x404.co.uk/forum/viewtopic.php?f=19&t=21590		 Page 1 of 1
Author:  pcernie [ Sun Mar 16, 2014 6:22 pm ]
Post subject:  Paris restricts car use after pollution hits high
http://www.bbc.co.uk/news/world-europe-26599010
Author:  l3v1ck [ Mon Mar 17, 2014 8:46 am ]
Post subject:  Re: Paris restricts car use after pollution hits high
How very 1970's.
Author:  TheFrenchun [ Mon Mar 17, 2014 9:27 am ]
Post subject:  Re: Paris restricts car use after pollution hits high
it's not only Paris, my part of the country had speed restrictions due to pollution last week
Author:  l3v1ck [ Mon Mar 17, 2014 9:47 am ]
Post subject:  Re: Paris restricts car use after pollution hits high
It's not just there. Aren't the government reducing the M1 speed limit to 60 near Sheffield, citing polution as the reason?
Author:  jonbwfc [ Mon Mar 17, 2014 9:51 am ]
Post subject:  Re: Paris restricts car use after pollution hits high
I don't honestly see how reducing speed is going to make that much difference. The difference in pollution output of any given modern engine going at 60 rather than 70 isn't actually all that great. Unless the air pollution is just slightly worse than what you're tolerant of, it's a waste of time.
Author:  l3v1ck [ Mon Mar 17, 2014 10:56 am ]
Post subject:  Re: Paris restricts car use after pollution hits high
It won't make a difference. They just want to be seen to be doing something.
Author:  big_D [ Mon Mar 17, 2014 10:58 am ]
Post subject:  Re: Paris restricts car use after pollution hits high
Italy has been the same for years. Cars without EU4 rating or better have 'odd' and 'even' days, if you have a registration ending with an odd number, you can only drive the car on odd days and vice versa.

I know many Italian families deliberately get the second family car registered with the 'other' plate, so that they can drive every day.
Author:  hifidelity2 [ Tue Mar 18, 2014 12:17 pm ]
Post subject:  Re: Paris restricts car use after pollution hits high
jonbwfc wrote:
I don't honestly see how reducing speed is going to make that much difference. The difference in pollution output of any given modern engine going at 60 rather than 70 isn't actually all that great. Unless the air pollution is just slightly worse than what you're tolerant of, it's a waste of time.

Quote:
According to studies backed by the department of energy, the average car will be at its advertised MPG at 55 mph. But as the speed increases:

- 3% less efficient at 60 mph
- 8% less efficient at 65 mph
- 17% less efficient at 70 mph


http://www.mpgforspeed.com/

so it is a reasonable amount
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