Which U.S cities have a rising share of workers commuting using public transit? Consider Philadelphia. In 1970, 23% of workers in this city commuted using public transit but by the year 2000 this share has fallen to 11%. What role has rising income, suburbanized employment and population suburbanization played in increasing the share of car commuters?
Here are the important cross-city by decade facts about public transit. Overall, the national reduction in public transit in big metro areas declined from 12% to 6% between 1970 and 2000.