Household vehicle utilization: report 5, 1977 - NPTS. Final report.

Federal Highway Administration, Highway Statistics Division, Washington, D.C.

Vehicle occupancy: report 6, 1977 - NPTS. Final report.

Federal Highway Administration, Highway Statistics Division, Washington, D.C.

Household vehicle ownership: report 2, 1977 - NPTS. Final report.

Federal Highway Administration, Highway Statistics Division, Washington, D.C.

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

Federal Highway Administration, Washington, D.C.

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

Federal Highway Administration, Washington, D.C.

TRIPCAL5 documentation manual, revised edition.

Texas Department of Transportation, Austin

Assessing travel behavior by blacks in the United States: a new perspective. Final report.

Transportation Department, Washington, D.C.

Mobility of people and goods in the urban environment: mobility of the handicapped and elderly. Second draft final report (second year).

Transportation Department, Office of University Research, Washington, D.C.

NPTS urban travel patterns. 1990 Nationwide Personal Transportation Survey (NPTS).

Federal Highway Administration, Washington, D.C.

Estimating the benefits from increased safety belt use.

Mode of access: Internet.

Home-to-work trips and travel: report 4, 1977 - NPTS. Final report.

Federal Highway Administration, Highway Statistics Division, Washington, D.C.

Estimating the benefits from increased motorcycle helmet use.

Mode of access: Internet.