Sudan
total: 11,900 km
paved: 4,320 km
unpaved: 7,580 km (1999 est.)
Suriname
total: 4,492 km
paved: 1,168 km
unpaved: 3,324 km (2000)
Svalbard
total: NA km
paved: NA km
unpaved: NA km
Swaziland
total: 3,247 km
paved: NA
unpaved: NA (1998)
Sweden
total: 212,402 km
paved: 166,523 km (including 1,499 km of expressways)
unpaved: 45,879 km (2000)
Switzerland
total: 71,011 km
paved: 71,011 km (including 1,638 of expressways)
unpaved: 0 km (2000)
Syria
total: 43,381 km
paved: 10,021 km (including 877 km of expressways)
unpaved: 33,360 km (1999)
Taiwan
total: 35,931 km
paved: 31,583 km (including 608 km of expressways)
unpaved: 4,348 km (2000)
Tajikistan
total: 27,767 km
paved: NA
unpaved: NA (2000)
Tanzania
total: 88,200 km
paved: 3,704 km
unpaved: 84,496 km (1999 est.)