The most important roads include the Makkah-Madinah Road (421 kms); the Jeddah-Makkah Road (60 kms); the Riyadh-Qassim Road (317 kms) and the Riyadh-Dammam Road (383 kms).
Arrangements are underway currently to implement 325 road projects at a total cost of more than SR14.117 billion in different parts of the Kingdom.
The general budget for this fiscal year (1425-1426 AH) included the implementation of new highways, more than 8,000 kilometer long, at a total cost of SR7 billion.
The Saudi officials have been giving great attention to the transport sector.
In 1399 AH, a Royal decree was issued for the establishment of the Saudi Arabia Public Transport Company (SAPTCO). The fleet of SAPTCO has increased to 3,095 buses of various sizes. In 2003, the buses of SAPTCO transported about 11.2 million passengers.
In order to improve the standard of road safety, the Ministry of Transport has established 13 administrations to undertake the supervision of the maintenance of the road projects.
From 1390-1391 AH up to 1424-1425 AH, more than SR16 billion was spent on the program of roads maintenance.
The late King Fahd bin Abdulaziz inaugurated, on 24/3/1407 (Nov 25, 1987), the causeway that links the Kingdom with Bahrain.