Personally, I think this number is too conservative. But see this important article.
SK
(AAPD)
May 11, 2012
WASHINGTON, DC– [Excerpt provided by Inclusion Daily Express] As conferees begin debating how to move forward with the federal transportation reauthorization, two civil rights organizations are highlighting massive disparities in transportation access for people with disabilities.
"Equity in Transportation for People with Disabilities," a report by The American Association of People with Disabilities (AAPD) and The Leadership Conference Education Fund, documents the lack of funding, enforcement, and oversight of transportation programs that allow people with disabilities the opportunity to participate fully in community life.
The collected findings demonstrate that federal and local policymakers have failed to fulfill the promise of the Americans with Disabilities Act and provide equal access to affordable transportation for all communities through federal surface transportation legislation.
Mark Perriello, president of AAPD, commented that "access to transportation is a prerequisite to full civil rights for people with disabilities. The goals of the Americans with Disabilities Act — economic power, independent living, political participation, and equal opportunity — can only be realized with affordable, accessible transportation systems."
Entire article:
People with Disabilities Still Left Behind In Transportation Debates
http://tinyurl.com/ide0511121a
Report:
Equity in Transportation for People with Disabilities (AAPD & The Leadership Conference Education Fund)
http://tinyurl.com/ide0511121b