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Many people assume that at lower speeds extra fuel is used and more pollution created. In fact the reverse is true. That’s why “Total 20[1]”, without traffic calming, is supported by so many environmental organisations. The facts :-
You can download a Briefing Sheet containing the above here. [1] Total 20 is the setting of 20mph as the default speed limit across a whole Traffic Authority or community without calming.
[2]
An illustrated guide to traffic calming. by Dr Carmen Hass-Klau
(1990)
[3] Newman & Kenworthy (1992). http://www.nap.edu/openbook.php?record_id=9676&page=369#p20003296ttt00035 [4] Luc Int Panis Carolien Beckx and Steven Broekx, Association for European Transport and contributors 2006 Impact of 30 Km/H zone introduction on vehicle exhaust emissions in urban areas - [5] European Road Safety Observatory – Traffic Safety Basic Facts 2009 – Pedestrians [6] Environmental Transport Association. Road User Exposure To Air Pollution Nov 1997 |
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