The SHIFT calculator enables users to estimate long-run (i.e., after 5 to 10 years) induced vehicle miles traveled (VMT) and emissions impacts from capacity expansions of large roadways in Metropolitan Statistical Areas (MSAs) or urbanized counties, based on existing lane mileage and vehicle miles traveled data from the Federal Highway Administration (FHWA).
MMT CO2e : Million Metric Tons of Carbon Dioxide Equivalent
NDC-Aligned Scenario refers to a policy scenario that is designed to meet the US target of reducing US greenhouse gas pollution 50-52 percent from 2005 levels by 2030. Notably, this scenario assumes rapid progress toward a decarbonized grid and accelerated electric vehicle adoption rates.
Business as Usual (BAU) reflects projected efficiency and electrification improvements and current policy measures.