ok sorry it was a bit rushed.......
it depends on what road you intend coming down, and if you know abu dhabi, as its not the easiest thing to find you drive past it but people do get lost.
ok there are a couple of ways to come into sas from dubai direction.
come down the main road channel st this is called, this has raha beach hotel on the right hand side and raha gardens/kca/etihad plaza on the left go down towards the new sh. zayed bridge, the road goes straight and you will see a sign post for SAS. the other way from dubai is to ignore the road along channel st and keep going towards the airport and al fahal, the road at rabha will take you up overbridge over the main road, this road goes past al fahal palace on left and al reef development on right, come off the next turn towards the airport this road then leads into mussafah road, go down there until you need to turn right just after the cricket stadium on your right, you then have to come off the next right after you have driven past all the houses on your right hand side, you take the next turn and then you can join the road that leads back into sas