[1] He was a two-time unsuccessful candidate for Mayor of the City and County of Honolulu, running on a program of absolute opposition to mass transit.

[2] He publishes his opinions on infrastructure, energy, sustainability, and policy issues on a blog called "Fix Oahu!".

[3] Prevedouros assisted both Hawaii Department of Transportation and Attica Tollway (Attiki Odos) in constructing to lessen the impact of bottlenecks, such as the Lunalilo on-ramp management, the Liliha-Pali couplet of ramps, the planned Middle Street improvements, and PM zipper lane deployments on Oahu; and the rerouting of the Peripheral Freeway connector onto Attica Tollway as well as a new interchange between Attica Tollway and Greek National Road 1 in Athens.

Prevedouros is Chair of the Subcommittee on Freeway Simulation, Transportation Research Board, National Academies since 2005.

Prevedouros served on the Technical Advisory Committee of Oahu Metropolitan Planning Organization from 2003 to 2004, was a member of the Transit Advisory Task Force for the Honolulu High-Capacity Transit Corridor Project in 2006, and was the Council Chair's appointee on the expert panel for the selection of fixed guideway technology for Honolulu in 2008.