Speed limits in Iceland

is allowed to set higher speed limits up to 100 km/h (62 mph) if deemed safe and necessary for traffic flow but no road actually has higher than the 90 km/h (56 mph) limit.

Some major urban highways well separated from pedestrians have higher limits of 60–80 km/h (37–50 mph).

[1] Lorries and cars with trailers have a speed limit as signed in any given place but never higher than 80 km/h (50 mph).

Iceland also has lower advisory speed limits, which are indicated by rectangular blue signs with white letters.

They are mainly used in trouble spots on rural highways such as when approaching a sharp corner or a single-lane bridge.