Kendra K. Levine
Yes! TransportationResearch.gov is the central place for the National Transportation Knowledge Network for the time being. Right now most of the action is happening withing the regional TKNs while we're waiting for NTKN funding.
I would love to see more people from outside the library community involved with this initiative. I'm currently Chair of the Western Transportation Knowledge Network (http://wtkn.org), and this sort of outreach is a high priority for me.