What is the maximum speed on the highway?

The maximum speed on roads without speed limit signs and markings is 40 kilometers per hour, and on roads with only one motor vehicle lane in the same direction, the maximum speed is 70 kilometers per hour. There are three main types of highway speed limits: 1. Signboard speed limit: refers to the speed clearly set on the highway with speed limit signs and markings. Usually, these speed limits are determined by the transportation department based on the design speed of the highway and the functional type of the highway. Geometric linear characteristics, operating traffic flow, roadside environment and other factors are comprehensively determined. 2. Legal speed limit: refers to road sections without direct speed limit signs. Drivers usually must abide by the speed limits stipulated in corresponding laws and regulations. The maximum speed on urban roads without speed limit signs and markings shall not exceed 70 kilometers per hour. The maximum speed on rural roads shall not exceed 60 kilometers per hour. 3. Speed ​​limit during special periods and weather: Generally, the speed limit is 30 kilometers per hour when driving on ordinary roads in fog, rain, snow, sand, dust, and hail with visibility within 50 meters, and when driving on ice, snow, and muddy roads.