Road tests of alertness variables. Final report.

National Highway Traffic Safety Administration, Washington, D.C.

Workshop on ride quality, 1976. Proceedings and findings. Summary report.

Transportation Department, Washington, D.C.

Field study of a variable-height highway-noise barrier. Final report.

National Highway Traffic Safety Administration, Office of Research and Development, Washington, D.C.

An experimental and analytical investigation of the vibration noise generation mechanism in truck tires. Interim report.

National Highway Traffic Safety Administration, Office of Heavy Duty Vehicle Research, Washington, D.C.