Can you go above 70 mph on a motorway?

The 70mph Myth: Is It Really a Hard Limit on Motorways?

The national speed limit on UK motorways is 70mph, a well-known fact etched into the minds of every driver. But is it truly a hard limit, or is there some wiggle room for a slight overshoot?

The answer, like most things in the legal world, is complicated. While exceeding 70mph is undeniably breaking the law, a small margin of error built into speedometers means drivers may occasionally find themselves slightly over the limit without intentionally speeding.

Speedometer Discrepancies:

Speedometers are not perfect. They are calibrated to show a slightly higher speed than the vehicle’s actual speed, allowing for a small buffer. This margin of error varies by vehicle and can be affected by factors like tyre wear and inflation.

The “Tolerable Limit”:

In practice, police generally don’t take action for minor speed infringements. A few miles per hour over the limit, particularly when influenced by speedometer inaccuracies, is unlikely to result in a ticket. However, this “tolerable limit” is not officially defined and varies depending on circumstances like traffic conditions, road type, and the discretion of the officer.

Speeding is Still Speeding:

Despite the potential for speedometer error, it’s crucial to remember that exceeding the speed limit is a legal offense. Even a small margin over the limit can significantly increase stopping distances and contribute to accidents.

Safe Driving Practices:

Driving at the national speed limit is a good starting point, but responsible driving involves much more than just keeping to a specific number. Factors like road conditions, weather, and visibility should also be considered when determining a safe speed.

Conclusion:

While a small margin of error in speedometers can explain occasional deviations from the 70mph limit, exceeding the speed limit remains illegal. It’s important to be aware of the potential for speedometer inaccuracies but never use them as justification for intentional speeding. Maintaining safe driving practices, respecting the speed limit, and exercising caution are key to keeping everyone on the road safe.