 
				
				
			
			Modelling the effects of Clean Air Zones on traffic and air quality poses many challenges, David Connolly, consultant SYSTRA’s director of innovation, told Modelling World.
SYSTRA is involved in traffic and air quality modelling for three of the cities where the Government has already stipulated a charging Clean Air Zone will be necessary – Derby, Nottingham and Southampton.
Connolly said the modelling could help identify which vehicle types should be included in a charging...
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