How much speeding is allowed in section speed measurement?
3 Answers
Section speed measurement does not allow exceeding 10% of the specified speed limit. The following is an introduction to section speed measurement: Introduction: It refers to the method of detecting the average speed of motor vehicles passing through the road section between two adjacent speed monitoring points. Rules: The section speed measurement system is established by setting up two cameras at two adjacent monitoring points on the same road section to create a monitoring and capture system. It conducts real-time monitoring and capturing of vehicles passing through the monitored area of the road checkpoint twice to obtain information such as the vehicle's speed, traffic flow, license plate number, color, approximate physical size, and driver characteristics. This information is then transmitted through a network to the public security traffic command center and the traffic control sub-center's database for data storage, query, comparison, and other processing.
I remember when driving through average speed check zones, there was no room for speeding at all. The system calculates your average speed from start to finish, and even if you exceed the limit by just a little, you could get fined. Having driven for 20 years, I've seen too many people hoping for margin of error to save them—some say devices might have a 5 km/h tolerance, but that's unreliable. Rules can vary by location, sometimes not even 1 km/h over is allowed. The key isn't about how much you can speed, but safe driving habits. Speeding increases accident risks, especially on highways where things can go wrong in an instant. I always advise friends to stick to the speed limit—don't gamble minutes against your life. If fined, points and penalties affect insurance too—just not worth it. Get used to checking navigation with your speedometer, and you'll always come out ahead.
From a technical perspective, the average speed measurement system calculates the mean speed between start and end points using GPS or radar. Although design tolerances account for minor errors (e.g., ±5% speed measurement variance), this doesn't permit speeding—exceeding limits remains illegal. Average speed control prevents temporary acceleration spikes, ensuring consistent vehicle speed throughout. Personal experience suggests vehicle speedometers inherently have slight deviations; using auxiliary tools like mobile apps for calibration helps avoid errors. Speeding risks are serious—data shows accident rates surge when exceeding limits by 10+ km/h. For safe driving, I recommend testing system tolerances but never exploiting them to speed, as this risks fines or worse consequences.
