This post features an analysis of data from the Minnesota Transportation Finance Database.
This figure shows the relative size of direct transportation expenditures, across levels of government, as a share of annual GDP in Minnesota. The measures are direct expenditures: state transportation expenditure includes federal transportation grants to the state but not grants that are allocated to local governments; local transportation expenditures include not only local transportation efforts, but also transportation grants they receive from the federal or state government. The figure shows that the shares have been decreasing significantly since 2007. (Note: Data for 2012 and 2013 are predicted based on the 2007-2011 trend.)