Categories: News

Speedometer or GPS: what speed should you trust? (Really)

With the development of technologies like GPS, should we still trust our meter or can we trust other tools?

While you wish to respect the limitation of the speed going on, you don’t know if you can trust 100 % to your GPS.
Current technology is it sufficiently reliable or should we continue to trust on the counter of the car ?

Car speedometer: 100% accuracy

The answer is quite simple. You can rely 100% on the counter your car. To enter The detailyou should know that depending on production date of the model, there are two ways to functioning of the speedometer.
The oldest models see the counter be connected to the gearbox via a cable while the models recent rather communicate with sensors at the wheels.
Regardless of the method, your on-board speedometer will not will never induce in error regarding the speed displayed.
You should even know that manufacturers must respect a few rules, such as slightly overestimating the displayed speed.
Generally, there are between 5 and 10 km/h between your actual speed and that displayed on your dashboard. For example, if you drive at 50 km/hthe speedometer should show a speed of approximately 55 km/h.
In short, if you respect speed limit on your meter, you will not be able to have a fine. Perfect to avoid unpleasant surprises during of a journey.

What accuracy for GPS?

It exists today many of applications in order to to improve the driver’s experience while behind the wheel. On the contrary your car’s meter, the observation is very different for GPS and other mobile applications. Just because the margin of error is much weaker with actual speed. Therefore, the risk of fine is greater pupil.
Applications like Waze or Coyote always overestimate your speed but less than your meter and they are thus much closer to reality.
Be careful, this is not the only reason. Indeed, so that GPS working correctly, a signal must be received.
Especially since the estimate of the speed on the GPS will depend on the reception of this signal outside.
This is why, if you enter an area without networkin a tunnel or even if weather conditions are bad, you will simply no longer have access at your speed or much less precisely than with your meter.

But then how quickly should we iron? The verdict is simple : look speed of your meter and you will not have no fine.

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