How much over the speed limit is driving at 85 in an 80 zone?

2 Answers
VanGarrett
07/25/25 4:15pm
Driving at 85km/h in an 80km/h speed limit zone is considered speeding, exceeding the limit by 6.25% (calculation: (85-80) ÷80x100%=6.25%). Below are the legal regulations regarding speeding from the "Road Traffic Safety Law of the People's Republic of China": 1. Article 42: When driving on the road, motor vehicles shall not exceed the maximum speed indicated by speed limit signs. On road sections without speed limit signs, safe driving speeds shall be maintained. When driving at night or on road sections prone to danger, as well as under weather conditions such as sandstorms, hail, rain, snow, fog, or icy roads, driving speed shall be reduced. 2. Article 44: When passing through intersections, motor vehicles shall proceed according to traffic signals, signs, markings, or the direction of traffic police; when passing through intersections without traffic signals, signs, markings, or traffic police direction, vehicles shall slow down and yield to pedestrians and vehicles with the right of way.
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McMatthew
08/11/25 9:45pm
Hey, I'm just an ordinary young guy who loves driving and often thinks about speed. Driving at 85 km/h in an 80 km/h zone means exceeding the limit by 5 km/h, which is a 6.25% increase. That doesn't sound like much, right? But last time I did this on the highway, I got caught by a speed camera and fined 200 yuan. I heard that in many places, they only crack down on speeding over 10%, but even 6.25% can be risky. A higher speed extends the emergency braking distance from the normal 20+ meters, and it's easier to skid on wet or slippery roads. Fuel consumption also increases by about 5%, meaning you lose dozens of kilometers per tank. I installed a mobile app to remind me of speed limits, and it works pretty well. Safety first—don’t take risks just to save time. Make it a habit to drive slower for peace of mind.
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