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for the subject:

Transportation and communications

Scholars who research "Transportation and communications" look at The branch of manufacture and trade based on freight, utilities.

A few scholars of "Transportation and communications" include MW Zacher, BA Sutton, PO Plaut, S Choo, T Lee, PL Mokhtarian.

Some motivations are improve efficiency and reduce the cost of Transportation and also finding new ways to improve commutation.

Several topics in "Transportation and communications" include railroads, trucking, and public transportation, including transit systems, highways, roads, and bridges.

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