You can't 'beat the system' if you pass between point A and point B you need to average 50mph or less to not be fined. If you've been averaging 50mph on your speedo the entire distance and by the end you've crept up to 55mph without realising, you'll still average within the limits over the total distance.
It should take no less than six seconds to travel between these two points at an average speed of 70mph. This means it is no use speeding along before then slowing down as you pass the camera – your average speed will still be too high. There's no way to beat the system.
If the ground they cover is 20 meters, then a car must travel 20 meters in one frame to not get caught by the camera: that would translate to a speed of 600 meters per second, or 1342 mph; or 1.75 the speed of sound.
How can I get away with speeding? Driving the speed limit helps, although there may be a few mph tolerance on most camera, it's unwise to test the limits.
Answer: It is a common myth that changing lanes confuses fixed average speed check cameras, this is not the case. Police forces generally use ACPO guidelines these are speed limit + 10% + 1 or 2 mph. However, it has been know that some police forces use just above the speed limit.
If you've exceeded the given speed limit at any point after the first set of cameras, you can slow down to lower the average speed before the next post. Such rapid deceleration can be pretty dangerous, though.
Is there an average speed camera tolerance? Exceeding the speed limit is against the law and a network of average-speed cameras that measures the time it takes a car to complete a set journey will provide all evidence required to secure a speeding conviction.
Myth 3 - Slowing down or speeding up can fool the camera
The only sure way to avoid triggering the camera is to stick within the speed limit. Driving even faster is not going to do you any good at all. If you are driving at or below the speed limit when driving past the speed camera then you will be ok.
In the eyes of the law, you're liable for a speeding fine as soon as you exceed the limit. So if you're doing 31mph in a 30 limit or 71mph on motorway, you're breaking the law.
Laser jammers are electronic devices used by motorists to block safety cameras and prevent them from detecting their speed.
How Much Margin for Error is There? At present some police forces allow 10 per cent of the limit plus 2 mph albeit, this is subject to change at any stage, with our without your knowledge from the relevant police forces. This leeway has always been discretionary.
The Gatso camera works by taking two flash photographs of the car travelling over road markings. The camera itself gives a speed measurement, but a court will rely on a technician's calculation of the distance covered over the ground, which is estimated to be accurate to within one mile per hour.
The 10% rule
That's because the National Police Chiefs' Council (NPCC) urges police officers to use their discretion when dealing with drivers who break the speed limit. To be more specific, they recommend only handing out speeding tickets if a driver surpasses the speed limit by 10% plus 2.
What is the 'rule'? The 'rule' itself is quite straightforward: if the speed limit is (for example) 30mph, the rule states that you won't get a speeding ticket unless you are going 10% plus 2 mph faster than the limit.
First and foremost, speedometers in most vehicles are designed to overestimate the speed of travel. International law has long required modern cars to overstate true speed.
How does a mobile speed camera van work? Law enforcement officers use laser and radar guns to clock the speed and capture images of unscrupulous drivers. On straight stretches of road they will usually be able to catch you within a range of 1 mile.
Can a speed camera be wrong? Fixed Gasto speed cameras are estimated to be accurate within one mile per hour and other types of fixed road cameras are estimated to be even more accurate. Therefore these speed cameras can be wrong but only marginally.
While active radar jammers are illegal, they have proven to generally not work, especially against the latest digital police radars.
AntiLaser Priority: Best Laser Jammer of 2023
Cutting to the chase, for many years now, the best laser jammer has been the AntiLaser Priority (starts at $1,009). It is the most effective laser jammer on the market.
Active jammers
Many police radars can detect jamming signals even when the radar is not transmitting, this is a good reason a jammer should only transmit when a radar signal is present.
The use of a phone jammer, GPS blocker, or other signal jamming device designed to intentionally block, jam, or interfere with authorized radio communications is a violation of federal law. There are no exemptions for use within a business, classroom, residence, or vehicle.
Laser jammers work by detecting a police officer's laser gun, then shooting back a return signal to confuse the gun. This temporarily prevents the laser gun from being able to detect speed, usually for around 10 seconds.