)

Tuvalu
total: 8 km
paved: 8 km (2002)

Uganda
total: 70,746 km
paved: 16,272 km
unpaved: 54,474 km (2003)

Ukraine
total: 169,422 km
paved: 165,611 km (includes 15 km of expressways)
unpaved: 3,811 km (2007)

United Arab Emirates
total: 4,080 km
paved: 4,080 km (includes 253 km of expressways) (2008)

United Kingdom
total: 398,366 km
paved: 398,366 km (includes 3,520 km of expressways) (2006)

United States
total: 6,465,799 km
paved: 4,209,835 km (includes 75,040 km of expressways)
unpaved: 2,255,964 km (2007)

Uruguay
total: 77,732 km
paved: 7,743 km
unpaved: 69,989 km (2004)

Uzbekistan
total: 86,496 km
paved: 75,511 km
unpaved: 10,985 km (2000)

Vanuatu
total: 1,070 km
paved: 256 km
unpaved: 814 km (1999)

Venezuela
total: 96,155 km
paved: 32,308 km
unpaved: 63,847 km (2002)

Vietnam
total: 222,179 km
paved: 42,167 km
unpaved: 180,012 km (2004)

Virgin Islands
total: 1,257 km (2007)

West Bank
total: 5,147 km
paved: 5,147 km
note: includes Gaza Strip (2006)

World
total: 68,937,575 km (2008)

Yemen
total: 71,300 km
paved: 6,200 km
unpaved: 65,100 km (2005)

Zambia
total: 91,440 km
paved: 20,117 km
unpaved: 71,323 km (2001)

Zimbabwe
total: 97,267 km
paved: 18,481 km
unpaved: 78,786 km (2002)

This page was last updated on 18 December 2008

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@2086 Illicit drugs

Afghanistan
world's largest producer of opium; poppy cultivation
increased 17% to a near-record 202,000 hectares in 2007; good
growing conditions pushed potential opium production to a record
8,000 metric tons, up 42% from last year; if the entire opium crop
were processed, 947 metric tons of heroin potentially could be
produced; drug trade is a source of instability and the Taliban and
other antigovernment groups participate in and profit from the drug
trade; widespread corruption impedes counterdrug efforts; most of
the heroin consumed in Europe and Eurasia is derived from Afghan
opium; vulnerable to drug money laundering through informal
financial networks; regional source of hashish

Albania
increasingly active transshipment point for Southwest Asian
opiates, hashish, and cannabis transiting the Balkan route and - to
a lesser extent - cocaine from South America destined for Western
Europe;