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How fast can you drive with a speed limit of 120?

4 Answers
LaHaven
08/31/25 7:32am
Theoretically, on a road with a speed limit of 120km/h, driving at 121km/h constitutes a speeding violation. However, in practice, penalties may vary due to the following factors. Speedometer error: The speed displayed on a car's dashboard is typically about 5km/h higher than the actual speed, with variations among different vehicle models. Since vehicle speed is calculated based on tire rotations, it's prone to errors. Therefore, driving at around 130km/h on a highway may actually equate to approximately 125km/h. Speed detection devices have an accuracy rate of over 95%: The error in speed detected by traffic police is less than 5%, which falls within the normal error range of the equipment. The error could be either lower or higher.
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VonJuliana
09/13/25 3:49am
Buddy, I'm the kind of person who drives on highways every day. When it comes to the speed limit of 120 km/h, it means you absolutely shouldn't exceed 120. In reality, many people think there's a 10% tolerance, like driving at 132, but I reckon that's unreliable—regulations vary by location, and you could get snapped by a speed camera. I suggest sticking to around 115 to account for speedometer errors—some cars show 120 when you're actually doing 130! Don't ignore road conditions either; in rain or fog, 100 is much safer. Safety first, especially when you've got family or pets in the car. Check your tire wear regularly—don't ruin a trip by pushing too hard. Getting fined isn't just about losing points; it's a waste of money too. Bottom line: drive to reach your destination alive, not to gamble with speed.
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DeAlexander
10/27/25 4:36am
I used to be a novice too, but now I'm accustomed to speed-limited sections. When the sign says 120 as the maximum, I try to keep it around 115. Be extra careful with older cars where the speedometer isn't accurate—GPS can help you check the real speed. On the highway, don't get into races or speed contests with others. When traffic gets heavy, slow down and maintain a safe following distance to avoid rear-end collisions. Hot weather can cause tires to overheat, affecting braking distance. Regularly check your car, like inspecting brake pads and lights—it saves fuel and keeps you worry-free. Driving at 120 is fine, but don't obsess over exceeding the limit; tickets and accidents aren't worth it. Develop good habits, and every trip will bring you safely home.
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VanWalter
12/10/25 4:52am
A speed limit of 120 km/h means you absolutely must not exceed 120 km/h. Driving fast carries high risks, not only resulting in hefty fines but also increasing the likelihood of accidents. Your speedometer might have some margin of error, so when it shows 120 km/h, your actual speed could be higher. Therefore, driving at around 115 km/h is safer. It's even better to reduce your speed to below 100 km/h during nighttime or in rain or snow. Pay attention to road signs ahead—don't accelerate if there are curves. Stay focused and avoid distractions like looking at your phone. Regularly maintain your vehicle to prevent unexpected breakdowns.
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