Edmund King, AA president, has suggested that better evaluation of the CO2 impact of road schemes and smarter use of simple measures may cut greenhouse gases more quickly than grandiose projects.
Mr King made his comments at the Westminster Energy, Environment & Transport Forum seminar on Urban Mobility on 9 September.
He said: "If we are smart about urban transport we can reduce CO2 and congestion without spending millions.
“Congestion and CO2 can be reduced by improving traffic flow through co-ordination of road works, phasing of lights and good parking policy. If we continually obstruct traffic with excessive traffic calming, we will increase congestion and CO2. New technology to improve fuel efficiency will be the biggest contribution to reducing CO2 from road transport."
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