What is the width of a single lane on the highway?

[StAmara]

For highways designed with a speed of 120km/h, the lane width is 3.75m, and the emergency stopping lane width is 3.5m. Here are the relevant details: 1. Article 78: Highways shall indicate the speed limit for each lane, with the maximum speed not exceeding 120 kilometers per hour and the minimum speed not less than 60 kilometers per hour. On highways, the maximum speed for small passenger vehicles shall not exceed 120 kilometers per hour, for other motor vehicles it shall not exceed 100 kilometers per hour, and for motorcycles it shall not exceed 80 kilometers per hour. 2. For two lanes in the same direction: the minimum speed for the left lane is 100 kilometers per hour; for three or more lanes in the same direction, the minimum speed for the leftmost lane is 110 kilometers per hour, and for the middle lane it is 90 kilometers per hour. If the speed indicated by road speed limit signs is inconsistent with the above lane speed regulations, the speed indicated by the road speed limit signs shall be followed.