Hi
I am looking for statistics on the economic (productivity) and health impacts of GHG emissions during periods of traffic congestion. Or conversely, the impacts of reduced traffic congestion. Can anyone point me in the right direction?
IMHO GHG emissions and traffic congestion are not the best to link since GHG gases do not cause local immediate impacts. The GHG emission is increasing proportionally by the consumed more fuel (it is an easy factor to apply if you assume the exhaust composition won't influence the GHG component proportions significantly; namely more CH and less CO2 compared to the normal use, and CH is 'stronger' GHG than CO2 per carbon). You can find plenty of literature of fuel use increase.
An indirect impact, more time spent in the congestion cause economic loss (besides the fuel consumption), and this can result in GHG emission increase.
Other emissions are more harmful from traffic jams since they have significant local impacts (CH, SOx, NOx O3).
Article Traffic, Air Pollution, and Health
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