Steven E. Polzin, PhD, worked for transit agencies in Northern Illinois, Cleveland, and Dallas. He subsequently researched and taught transportation at the University of South Florida, including extensive research on public transportation and travel behavior. He served for 13 years as a member of the Board of Directors for the Hillsborough Area Regional Transit Authority and seven years as a Board Member for the Hillsborough Metropolitan Planning Organization. He recently completed an appointment as a Senior Advisor for Research and Technology at USDOT.

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