014809832013PDFTech ReportFHWA-HRT-13-058;HRTM-30/04-13(1M)ECongestion management systemsDecentralizationReal time informationResearchResource allocationTechnological innovationsTransportation system managementUnited StatesUnited States. Federal Highway AdministrationUnited States. Federal Highway Administration. Exploratory Advanced Research ProgramFederal Highway AdministrationWith the cost of congestion in the United States estimated to be in the order of $121 billion, transportation planners are under increasing pressure to improve conditions and meet projected demand increases. Harnessing emerging technologies to develop an entirely new type of decentralized transportation system to help meet this challenge is the goal of "Engineering ...