What is the maximum speed on the highway?

The maximum speed on the road needs to be analyzed based on specific issues: 1. For speed limit signs and markings, the limit is 30 kilometers on urban roads without road center lines and 40 kilometers on roads; there is only one motor vehicle lane in the same direction, 50 kilometers on urban roads and 70 kilometers on highways. 2. Special weather: In case of fog, rain, snow, sand, dust, hail and visibility within 50 meters, the maximum speed is 30 kilometers per hour. 3. U-turn: When turning or going down a steep slope, the maximum speed is 30 kilometers per hour. 4. When driving on snowy and muddy roads: the maximum speed is 30 kilometers per hour. 5. When towing a faulty motor vehicle: the maximum speed is 30 kilometers per hour. 6. Entering and exiting non-motorized lanes: When passing through railway crossings, sharp turns, narrow roads, and bridges, the maximum speed is 30 kilometers per hour.