How Fast Can You Drive on a 120 km/h Speed Limit?

1 Answers
OTessa
07/29/25 8:22pm
In theory, driving at 121 km/h on a road with a speed limit of 120 km/h constitutes a speeding violation. However, in practice, the enforcement may vary due to the following factors. 1. Speedometer error: The speed displayed on the car's dashboard is typically about 5 km/h higher than the actual speed, with variations depending on the vehicle model. This discrepancy occurs because the speed is calculated based on the number of tire rotations, which can easily introduce errors. For example, driving at 130 km/h on a highway may actually equate to around 125 km/h. 2. Speed gun accuracy: Traffic police speed detection devices have an accuracy rate of over 95%, with a margin of error less than 5%, which is considered within the normal range for such instruments. This error can result in readings that are either slightly lower or higher than the actual speed.
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