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Americans love the romantic vision of a Corvette on the open road and a single-commuter car at the whim of its driver. But with traffic jams and fatal accidents increasing, how will Americans face the reality of transportation’s future and take action to get traffic moving?

Much of life involves setting priorities. In the age of information overload, the need to select relevant information and prioritize is greater than ever. Ranking product choices, identifying items of greatest relevance and interest and setting priorities are widespread issues in economics, health informatics and online networks.