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National Research Council, Transportation Research Board, Designing safer Roads: Practices for Resurfacing, Restoration, and Rehabilitation, Washington, DC: TRB Special Report 214.

National Research Council, Transportation Research Board, Transportation Aesthetics, Washington, DC: Transportation Research Record No. 1549, 1996.

Rypkema, Donald D., The Economics of Historic Preservation, Washington, DC: National Trust for Historic Preservation, 1994.

Sensible Transportation Options for People (STOP), Traffic Calming: The Solution to Urban Traffic and a New Vision for Neighborhood Livability, Tigard, Oregon: STOP, 1993.

U.S. Department of Transportation, Federal Highway Administration, Summary Report on Aesthetic Bridge Rails and Guardrails, FHWA-SA-91-051, Washington, DC, 1992.

Wick, Jim, A State Highway Project in Your Town? Your Role and Rights: A primer for Citizens and Public Officials, Burlington, Vermont: Preservation Trust of Vermont, 1995

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