Automatic number plate recognition has been used in UK car parks for well over a decade, yet it still attracts more suspicion than almost any other parking technology. Some of that suspicion is misplaced. Some of it is a fair challenge that operators should be able to answer.
Here are six beliefs we hear regularly from councils, estates teams and drivers, each with a straight answer. Where a myth has a kernel of truth, we say so.
Myth 1: “ANPR is a privacy nightmare”
This is the one to take most seriously, so let us start with what is true. A vehicle registration mark is personal data under UK GDPR, because it can be linked to an identifiable person through the DVLA. An ANPR system recording plates, times and locations is processing personal data, and the operator must justify it.
In practice that means a lawful basis (usually legitimate interests for a private operator, or public task for a council), clear signage saying ANPR is in use and why, keeping images only as long as the purpose requires, and securing the data properly. A Data Protection Impact Assessment (DPIA) is the right starting point: a plain document setting out what is collected, why, for how long, who can see it and what the risks are to drivers. Be strict about retention. A compliant stay has no reason to sit on a server for months; a record needed for a contested charge does.
So the myth is wrong in its conclusion but right in its instinct. ANPR is only as privacy-respecting as the governance around it. Ask any supplier, including us, for their retention schedule and DPIA support. You can read our privacy policy on our site.
Myth 2: “It’s just a machine for issuing fines”
Enforcement is one use of ANPR, and often the one drivers notice. But in a barrier-less Freeflow car park the same cameras let most people drive in and out without stopping, pay for the exact time they stayed, and never touch a ticket.
For the operator, the cameras generate occupancy and dwell-time data that informs tariffs, signage and capacity planning. For permit holders, they replace hangers and scratchcards. Enforcement is a by-product of knowing who is on site.
Myth 3: “The cameras get plates wrong all the time”
Recognition errors do happen. Dirty plates, non-standard fonts and towed vehicles all cause misreads. No system reads every plate correctly every time, and any supplier quoting a headline accuracy figure should explain the conditions it was measured under.
What matters more is what happens next. A well-designed system pairs entry and exit reads, flags mismatches for human review rather than charging automatically, and gives the driver an easy route to challenge. Misreads are managed through process, not eliminated through optics.
Myth 4: “It doesn’t work in the rain, or at night”
Modern ANPR cameras use infrared illumination and are built for exactly what a British car park offers: darkness at 16:30 in December, spray, headlight glare. Positioning and height matter, which is why a site survey precedes installation. A badly sited camera underperforms in any weather, and that is usually the real complaint.
Myth 5: “It’s unfair on disabled drivers”
There is a genuine concern here. If the only way to register for free or extended parking is through an app, drivers who do not use smartphones are excluded. That is a design failure, not an ANPR failure.
Done properly, ANPR can be more inclusive than a pay-and-display machine. A blue badge holder’s registration can be whitelisted once so every visit is recognised automatically, with no walk to a machine and no ticket to display. The condition is that registration is possible by phone, in person and on paper as well as online, and that the grace period allows for someone who needs more time.
Myth 6: “It’s too expensive for a small car park”
Barrier systems have arm motors, loops, ticket dispensers and intercoms to maintain, and a queue at the exit when one fails. An ANPR installation has cameras, a connection and software. The capital cost is often lower than people expect, and the ongoing cost lower still because there is less to break.
ANPR is not automatically the right answer, though. Sites with very short stays, heavy trailer traffic or a need for physical access control may still suit a barrier. Cost alone rarely decides it.
The honest summary
ANPR is a tool. It handles the mundane parts of parking well, and it raises legitimate questions about data that operators must answer clearly and in public. If you are weighing it up, we are happy to talk through governance as well as hardware. Talk to the Sagoss team or book a Blink demo.