Figure illustrating coordinated set of Web 2.0 tools for collaborative transport planning from my 2010 US Transportation Research Board paper: Web 2.0 Applications for Improving Public Participation in Transport Planning.
I just saw the website Transportation for Communities - Advancing Projects through Partnerships (TCAPP). The website "has been created to enhance collaboration in transportation decision making". My major research interest right now is improving collaboration in transportation planning so I was quite interested in seeing what the website had to offer.
In summary, it is a very good description of the transportation planning process (although specifically designed for highway projects many of the concepts are quite similar for public transport). The main purpose seems to be to help citizens better understand the transport planning process and it does a good job. It also includes a tool to help either stakeholders or practitioners "identify what is going wrong in a process". That's quite an interesting and helpful feature I think. Other interesting features are the decision guide and case studies.
The website does not provide Web 2.0 tools that actually enable citizens to collaborate in the transportation planning process as I have proposed, but is a very valuable addition to the "library" of information needed to help support an integrated set of applications (see illustration above).