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Federal
Inequity Identification Tool (IIT) Air Cost recent views
Department of Transportation —
This file contains the road segments from FHWA's HPMS dataset with estimates of the cost of air pollution from the traffic on that segment. The cost of air pollution... -
Federal
Collection Congestion Mitigation and Air Quality (CMAQ) recent views
Department of Transportation —
All 50 states and the District of Columbia submit annual reports of their CMAQ project obligations in March of every year. The FHWA uses these yearly submissions to...