TRB’s Electronic Circular 77--Enhancing the Value of Data Programs: A Peer Exchange contains the proceedings of a peer exchange that took place on July 23-24, 2001, in Vail, Colorado. The purpose of the exchange was to share ideas on raising the awareness of data programs and ensuring that data add value to the operation of state departments of transportation. The forum examined what states are doing to address data gaps and the role that data programs play in decision-making processes.