Transport > Highways Stats: compare key data on Portugal & United States
Definitions
- Paved: total length of the paved parts of the highway system
- Paved > Per capita: total length of the paved parts of the highway system Per capita figures expressed per 1,000 population.
- Paved per 1000: total length of the paved parts of the highway system. Figures expressed per thousand population for the same year.
- Total: total length of the highway system
- Total > Per capita: total length of the highway system Per capita figures expressed per 1,000 population.
- Total per 1000: total length of the highway system. Figures expressed per thousand population for the same year.
- Unpaved: total length of the unpaved parts of the highway system
- Unpaved > Per capita: total length of the unpaved parts of the highway system Per capita figures expressed per 1,000 population.
- Unpaved per 1000: total length of the unpaved parts of the highway system. Figures expressed per thousand population for the same year.
SOURCES: All CIA World Factbooks 18 December 2003 to 18 December 2008; All CIA World Factbooks 18 December 2003 to 18 December 2008. Population figures from World Bank: (1) United Nations Population Division. World Population Prospects, (2) United Nations Statistical Division. Population and Vital Statistics Report (various years), (3) Census reports and other statistical publications from national statistical offices, (4) Eurostat: Demographic Statistics, (5) Secretariat of the Pacific Community: Statistics and Demography Programme, and (6) U.S. Census Bureau: International Database.
