Driving performance after an extended period of travel in an automated highway system.

Federal Highway Administration, Office of Safety and Traffic Operations, Washington, D.C.

Highway travel: 1970-2000. Final report.

Federal Highway Administration, Washington, D.C.

Travel in Alaska and the Alaska Highway.

"March 1958."

Travel and camper trailer safety.

Mode of access: Internet.

Guidebook on methods to estimate non-motorized travel: overview of methods.

Turner-Fairbank Highway Research Center, McLean, Va.

Descriptive guide to the Adirondacks and handbook of travel to Saratoga Springs, Schroon Lake, lakes Luzerne, George and Champlain, the Ausable Chasm, the Thousand Islands, Massena Springs and Trenton Falls.

Mode of access: Internet.

Travel mode special reports: based on data from 1990 Nationwide Personal Transportation Survey (NPTS).

Federal Highway Administration, Washington, D.C.