Speed limits in South Korea

The speed limit on most city streets and rural two-lane roads is 60–80 km/h, but the limit on expressways managed by the Korea Expressway Corporation ranges between 100 km/h and 120 km/h. Four-lane roads between cities generally have an 80 km/h limit.

Speed limits in most areas are enforced exclusively by traffic cameras. This is becoming problematic, as commonly used and inexpensive GPS navigation device units alert drivers to the placement of these devices, allowing them to slow down for only short periods of time to avoid cameras and then continue to exceed the speed limit. There is a tolerance of 10 km/h over the posted limit and reduced fines for exceeding the limit by 10-20km/h.