Why is the speed limit on Qinglan Expressway set at 80?

[VanessaDella]

The speed limit of 80 is for motorcycles. On the Qinglan Expressway, the maximum speed for small passenger vehicles must not exceed 120 kilometers per hour, other motor vehicles must not exceed 100 kilometers per hour, motorcycles must not exceed 80 kilometers per hour, and the minimum speed must not be lower than 60 kilometers per hour. Introduction to speed limits: Speed limits generally refer to the regulation of vehicle speeds within a certain numerical range over a specified length of road. Purpose of speed limits: The main purpose is to pre-warn drivers to reasonably control their speed in subsequent sections of the road ahead, prevent the dangers of speeding, and ensure driving safety. Speed limits are an indispensable and most important part of road transport safety.