The Center for Neighborhood Technology has an fun (but painfully slow) interactive map that will allow you to see how soaring transportation costs are impacting different metro areas across the US.
We grabbed these images of Chicago as an example. As you can see, the percentage of income that people are dedicating to transportation has grown — especially in more rural areas. The site also has an interactive map of the Housing and Transportation Affordability Index (below)– so you can see where people are dedicating less than 45% (shown in yellow) of their income to housing and transportation. Living in the city never looked so good.