Article ID: | iaor20125180 |
Volume: | 17 |
Issue: | 7 |
Start Page Number: | 538 |
End Page Number: | 547 |
Publication Date: | Oct 2012 |
Journal: | Transportation Research Part D |
Authors: | Bigazzi Alexander Y, Figliozzi Miguel A |
Keywords: | transportation: road, demand, simulation |
Capacity, demand, and vehicle based emissions reduction strategies are compared for several pollutants employing aggregate US congestion and vehicle fleet condition data. We find that congestion mitigation does not inevitably lead to reduced emissions; the net effect of mitigation depends on the balance of induced travel demand and increased vehicle efficiency that in turn depend on the pollutant, congestion level, and fleet composition. In the long run, capacity‐based congestion improvements within certain speed intervals can reasonably be expected to increase emissions of CO