Representatives from Virginia, Maryland, Pennsylvania and the Florida department of transportation told members of the House T & I Committee April 30 that Public-Private Partnerships (P3) are a critical tool for advancing certain types of transportation projects, but that they are not a substitute for core program investments.  The state officials described individual P3 projects in their states and lessons learned from these initiatives.  The wide-ranging discussion was convened by the Committee’s “special panel” on P3s that is chaired by Representatives John Duncan (R-Tenn.) and Mike Capuano (D-Mass.).  The panel began its work in January and is expected to put forth recommendations later this summer on the proper role, if any, the federal government can play in P3 projects.