TRB Transportation Research Circular E-C082, Statewide Multimodal Transportation Planning Proceedings: 2004 Peer Exchange focuses on cost estimating for transportation planning and incorporating safety into the transportation planning process. The report provides an overview of the presentation and roundtable discussions that took place during the peer exchange on July 27-28, 2004, in Park City, Utah. The report also includes responses to questions on statewide mutimodal transportation planning from state departments of transportation and metropolitan planning organizations.