Something quick from the NY area "Tri-State Transportation Campaign."
"Barack Obama is the only candidate to connect transportation and economic access. He identifies lack of adequate public transportation as a barrier to low-income people seeking work and highlights the disproportionate share of income they spend on transportation. Like Clinton and Edwards, he wants to see increased transportation funding but he goes further by seeking to incentivize bike and pedestrian measures. He also wants to reform the tax code to equalize the commuter pre-tax benefits for parking and transit riding (currently, employees can use up to $220/month in pre-tax income for parking, but only $115/month for transit)."
http://blog.tstc.org/...