Syria road network comprises 30,208 km of which 95% is paved. The second-class roads are unreliable during the wet season. The principle rout is Aleppo to Damascus and Dar'a (north-south axis). Traffic drives on the right.
Public road transport is inexpensive and well-scheduled. The government run Karnak buses connect all major towns and cities, these are air-conditioned, speedy and reliable, but seats need to be reserved at least a day in advance. Pullman buses are run by privately owned companies, which have set up in direct competition with Karnak and are much cheaper.
Microbuses are the lowliest on the bus transport scale and are in consequence, cheaper and far less comfortable. Microbuses serve the smaller towns and their departures are unscheduled the vehicle will depart when it is full. Passengers are set down and picked up at any point along the route, so getting to your destination can be slow.
Service taxis operate on all major routes and cost considerably more than the microbus fare. These shared taxis are usually faster, because they contain only five seats and therefore fill up more quickly. Private taxis, certainly those in Damascus, have meters, although not all drivers will use them.
Car rental is readily available and agents can be found in most of the larger hotels.
Documentation: International driving permit is required. Green Cards are not yet accepted in Syria. Insurance is required by law and a customs certificate is needed. These are available from touring and automobile clubs.