What is the general speed for medium speed?

[JaceLee]

Medium speed is generally around 40 kilometers per hour, and most urban streets are speed-limited to 40 kilometers per hour. Here is some relevant information: 1. Low speed: Low speed is below 20 kilometers per hour, such as when entering road intersections, narrow streets, etc., with speed limits below 20 kilometers per hour, and in some places, it is 15 kilometers per hour. 2. High speed: High speed generally refers to speeds above 80 kilometers per hour. The speed limit for primary roads is usually 80 kilometers per hour, while expressways have speed limits of 100 to 120 kilometers per hour (except for sharp curves and steep slopes, where the speed should follow the limits indicated on speed signs).