The speed is calculate in km.
In build areas and villages the speed limit is 50km maximum
Outside building areas heading to motorways is 65 km and rarely 80 km.
In major motorways is 100km!
Vehicles move in the LEFT LANE
You are allowed to use the right lane of :
-over taking another vehicle
-giving priority to a vehicle entering the highway
Are obligatory in front and behind seats
Hand held mobile phones or other devices while driving is prohibited.