Is white font the maximum speed limit or the minimum speed limit?

[DeHolden]

White numbers indicate the minimum speed limit. Below is relevant information about highway speed limits: 1. Average speed: The average speed on highways is above 80 km/h, with a maximum speed of up to 120 km/h, which is 60% to 70% higher than on ordinary roads. Highways have more lanes, wider road surfaces, and greater traffic capacity, enabling them to handle several times or even dozens of times more traffic volume than ordinary roads. 2. Speed limit signs: Road surface speed limit markings are generally placed on highways, with yellow representing the maximum and white representing the minimum. The maximum speed limit sign indicates the highest speed limit for vehicles entering the road ahead. This sign is placed at the beginning of speed-limited sections on highways or other roads.