What has the impact of the Americans with Disabilities Act been on the viability of public transit, and its competitiveness with motor vehicles? I'd venture to say that the ADA did little to make building highways more expensive, but has made public transit more expensive to build and operate. Public transit advocates are starting to express concern as well. I'm not saying the ADA should be repealed or anything. But any time the debates turns to declining per capita use of public transit, the costs imposed by and services degraded to accommodate the ADA should be factored in.