... as a result of BABs. The National Association of State Treasurers, the U.S. Conference of Mayors, the National League of Cities, the National Association of Counties, the Council of State Governments, ... In support of this commitment, the Department of the Treasury, with the Council of Economic Advisers, has updated our analysis of the economic effects of infrastructure investment. The new data ... conditions); the higher the TTI index, the larger the share of peak travel time that is subject to congestion. The TTI is independent of the total amount of peak travel – it simply measures the fraction...