Bhutan
total: 3,690 km
paved: 2,240 km
unpaved: 1,450 km (1999 est.)
Bolivia
total: 53,790 km
paved: 3,496 km (including 13 km of expressways)
unpaved: 50,294 km (2000 est.)
Bosnia and Herzegovina
total: 21,846 km
paved: 11,424 km
unpaved: 10,422 km (1999 est.)
Botswana
total: 10,217 km
paved: 5,619 km
unpaved: 4,598 km (1999)
Brazil
total: 1,724,929 km
paved: 94,871 km
unpaved: 1,630,058 km (2000)
British Indian Ocean Territory
total: NA km
paved: short section of paved road between port and airfield on
Diego Garcia
unpaved: NA km
British Virgin Islands
total: 177 km
paved: 177 km
unpaved: 0 km (2000)
Brunei
total: 2,525 km
paved: 2,525 km
unpaved: 0 km (2000)
Bulgaria
total: 37,286 km
paved: 35,049 km (including 324 km of expressways)
unpaved: 2,237 km (2000)
Burkina Faso
total: 12,506 km
paved: 2,001 km
unpaved: 10,505 km (1999)