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Another reason why 20's plenty

As I have argued in several previous posts, 20mph limits in residential
areas [which is Green Party policy] would _reduce_ carbon emissions,
because they would incentivise walking and cycling, the main barrier to
increases in which is fears over safety.
Furthermore, however, there is an additional crucial argument in favour
of 20mph limits:
Most cars hitting 30mph in residential areas will be doing so through
fast acceleration and deceleration, which is highly inefficient
fuel-wise. The argument in favour of 30mph rather than 20mph limits is
predicated upon tests of fuel-consumption WHEN DRIVING AT A CONSTANT
SPEED. But constant driving at 30mph in residential areas is very rare
[and when it happens, is rarely safe!]. Constant driving at 20mph is far
more plausible – and less fuel-inefficient than rapid acceleration and
braking.
--
Rupert Read
Green Party Councillor, Norwich, and Lead Candidate for Eastern Region for the Greens in the 2009 Euro-elections. Why not try my new BLOG, 'Rupert's Read': http://rupertsread.blogspot.com

See also www.oneworldcolumn.org [for my regular op-ed journalism]
I TWITTER. DO YOU? Check out my new frequently-updated, mobile-phone-based MICRO-BLOG, at http://twitter.com/RupertRead

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