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Parking Management System Guide: Plate-Based Entry, Occupancy, Charging and Getting the Set-Up Right

What a parking management system is made of, and how to set up plate-based entry, occupancy counting, charging, payment and reporting the right way.

9 min read  · Digital Bridge Engineering Team
Parking Management System Guide: Plate-Based Entry, Occupancy, Charging and Getting the Set-Up Right

A parking management system brings together barriers, a licence plate recognition camera, vehicle detection sensors, an occupancy sign, a payment point and the software that connects them. It identifies vehicles by plate on entry, calculates parking time, applies season-ticket or free-period rules automatically and shows free spaces in real time.

Set up properly, the car park decides who gets in without depending on an attendant, records every passage, collects the charge and reports on it.

What actually happens in the car park

Think of a shopping centre, hospital or office building car park. A ticket machine at the entrance, a queue to pay at the exit, a barrier raised by hand and a booth left empty at shift change. There are arguments over lost tickets, season-ticket holders are stopped every time, the entrance sign says there are spaces when the car park is full, and cars wait on the ramp. At the end of the month, when management asks "how many cars came in, and why is revenue down?", the answer has to be pieced together from paper tickets and the cash book.

Factory and residential car parks do not charge, but the problem is the same: whose car is inside, how many spaces are free, when did a visitor's car arrive and is it still here? Municipal car parks add lost revenue and an expectation of transparency. We cover entry as a whole in residential complex access control for housing sites and office building access control for office buildings.

The cost of an unmanaged car park

A poorly managed car park costs not only the operator but also drivers and the city. The most widely cited comprehensive data comes from the US:

According to INRIX's 2017 "Parking Pain" study, US drivers spend 17 hours a year searching for parking, at a cost of USD 345 per driver in wasted time, fuel and emissions. In New York the figure rises to 107 hours a year.

Cars searching for a space also add to congestion. In his article "Cruising for Parking" in ACCESS Magazine, Donald Shoup reports that sixteen studies carried out between 1927 and 2001 in the central business districts of eleven cities on four continents found that finding a kerbside space took eight minutes on average, and about 30 percent of cars in the traffic flow were cruising for parking. Because these studies were done in city centres, the figure does not apply to every street — but it shows how large the problem can become wherever spaces are scarce.

These figures were measured for kerbside parking in city centres, yet the lesson holds for off-street car parks too: when drivers cannot see a free space, they circle, wait and queue. A system that shows occupancy at the entrance, lets season-ticket holders through without stopping and takes payment without a queue directly cuts the part of that loss that happens inside the car park.

Components of a parking management system

  • Barrier or road blocker: boom barrier, high-speed barrier or hydraulic road blocker. Opening speed and arm length are chosen to suit traffic volumes and lane width.
  • Licence plate recognition: when a registered vehicle's plate is read, the barrier opens without an attendant, and visitor vehicles are directed to a separate flow. Camera choice, read accuracy and the data protection side of plate data are a separate topic, covered in depth in our licence plate recognition guide.
  • Vehicle detection and safety: an inductive loop in the road surface and a photocell stop the arm from coming down on a vehicle. Manual opening and an emergency scenario are defined for power cuts.
  • Occupancy counting and guidance: vehicles entering and leaving are counted, the number of free spaces is calculated in real time and shown on an LED sign at the entrance or a digital signage screen; once the car park is full, no more vehicles are admitted.
  • Charging and payment: time-based tariffs, season tickets and free periods are defined. Payment is taken at a pay station kiosk, by card terminal or via a mobile app.
  • Reporting and audit: entry and exit records, occupancy and revenue reports, season-ticket usage; every passage is archived with plate and photo. Car park cameras can also join the site's existing IP camera system.

Ticket, card and plate-based car parks compared

CriterionTicket-basedCard or remote-basedPlate-based
Waiting at entryStop to take a ticketStop to present a cardRegistered vehicles enter without stopping
Loss riskTickets get lost, disputes followCards and remotes get lost or copiedNothing to carry
Season-ticket managementSeparate card or manual checksCards must be issued and returnedPlate added to or removed from a list
Records and evidenceTime printed on the ticketCard numberPlate, date, time and photo
ChargingBy ticket at the pay deskBy cardAutomatically from entry and exit times

Reporting matters as much as entry control, and occupancy and revenue indicators can be followed on a BI dashboard. An hour-by-hour occupancy profile shows on which days the car park fills up, whether capacity reserved for season-ticket holders is actually used and how long visitors typically stay. As Shoup describes in the same article, some cities set kerbside parking prices so that occupancy stays at about 85 percent, which keeps a few spaces free and reduces cruising.

A similar target for an off-street car park only becomes possible once occupancy data is collected reliably: tariffs, season-ticket quotas and free periods are then adjusted based on that data. In factory and residential car parks, the same report shows whether investment in new parking is really needed, or whether existing space could be shared better across shift patterns.

Car park data should not sit on its own. Organisations running several car parks watch barrier faults, occupancy and payment errors on one screen through a remote monitoring platform, so they can see which entrance is misbehaving without sending anyone out. In multi-storey car parks, ventilation and lighting are usually controlled through a building management system (BMS), driven by carbon monoxide readings and hours of use.

A plate-based system is not the only right answer for every car park. In shopping centres with heavy visitor traffic, a mixed flow — plate recognition for registered vehicles, a ticket or QR code for visitors — is often the most practical solution. What matters is deciding up front which vehicle group goes through which flow. Security- and dispatch-led vehicle flows at factory and warehouse gates are covered in our vehicle access control system guide.

Six steps to getting the set-up right

The steps below focus on running the car park; guides to choosing barriers, cameras, kiosks and other field devices are collected in our IoT & Hardware hub.

  1. Define your vehicle groups. Staff, season-ticket holders, visitors, suppliers, patients' relatives or paying customers — each group needs its own entry, duration and charging rule.
  2. Measure the peak. How many vehicles arrive in the morning, at lunchtime, in the evening or at the weekend peak? Barrier type, number of lanes and opening speed follow from that figure.
  3. Design the tariff together with the system. Free periods, season tickets, daily caps and validations (for example, purchase-linked discounts in a shopping centre) must be clear rules that the software can enforce.
  4. Place the payment point with queues in mind. Paying at the exit booth creates queues; a pay station kiosk at the pedestrian exit or mobile payment keeps cars from waiting at the barrier. We cover kiosk selection in our self-service kiosk guide.
  5. Write down safety and failure scenarios. Loop detector and photocell, manual opening during power cuts, access for ambulances and fire engines, and what the barrier does if the system fails should all be decided in advance.
  6. Decide who owns the data and how long it is kept. Plates and passage photos are personal data under KVKK — Türkiye's Personal Data Protection Law, broadly comparable to the GDPR — so purpose, privacy notice, retention period and access rights must be defined from the start.

How we approach this at Digital Bridge

On barrier and parking system projects we install the barrier, control board, camera, on-site software and management panel together; the control board and software are our own design. The process has four stages:

  • Site survey. We inspect entry and exit points, peak-hour vehicle volumes and manoeuvring space in person, and choose the barrier type and position accordingly.
  • Design and proposal. We draw up the electrical infrastructure, loop channels, camera angles and sign positions, and model the tariff. Scope and cost are set out in a written proposal.
  • Installation and commissioning. We mount the barrier, run the cabling, set up the licence plate recognition camera and install the software, then test the system with real traffic.
  • Training and maintenance. We train your security and management teams and agree a periodic maintenance and spare parts plan with you. Technical support is available 24/7.

If you already have a working barrier, there is no need to replace it: we connect it to the system by adding a control board and plate recognition module, so you only invest in the missing part. The pay station comes from the same team as a self-service kiosk, with enclosure, card terminal and software designed around your tariff. For municipal car parks, see our public sector and municipality solutions; for shopping centre and store car parks, our retail solutions.

For organisations that also want to manage pedestrian entry, staff attendance and canteen counting on the same site, our own product SmartPass combines card access control, time and attendance and canteen meal counting in a single card read; vehicle and pedestrian entrances are planned together during the site survey.

Council car parks create more value when they are managed on the same platform as the city's other sensors and devices; we cover that bigger picture in our article on smart city applications.

Next step

To see where your car park stands today, spend a week recording peak-hour waiting at the entrance, daily vehicle numbers, your vehicle groups and recurring problems such as lost tickets or barrier faults. Then contact us to plan a site survey; we will settle the barrier type, plate recognition and payment flow with you on site and follow up with a written proposal.

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Tell us about your process; after a needs analysis we send a written proposal with scope, phases and cost.

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Questions we hear most often

Frequently Asked Questions

What is a parking management system?

It is a combination of barriers, a licence plate recognition camera, vehicle detection sensors, an occupancy sign, a payment point and management software. It identifies vehicles on entry, calculates parking time, applies charging or season-ticket rules, shows free spaces and records every passage with plate and photo.

Do I need to replace my existing barrier?

A working barrier is usually kept. It is connected to the parking management system by adding a control board and plate recognition module, so you only invest in the missing part. During the site survey we check the barrier's motor, arm and existing control wiring. If the barrier is at the end of its life, or too slow for the traffic at the entrance, an option such as a high-speed barrier is proposed separately.

What happens when the car park is full?

Because vehicles entering and leaving are counted, the number of free spaces is calculated in real time and shown on the LED sign at the entrance. When the car park is full, no more vehicles are admitted, and drivers are informed at the entrance instead of waiting on the ramp or circling between levels. The same occupancy data feeds the reports, showing on which days and at which hours the car park fills up.

What does the barrier do in a power cut?

Manual opening and an emergency scenario for power cuts are defined during installation, including access for ambulances and fire engines. In addition, the inductive loop in the road surface and the photocell prevent the arm from coming down on a vehicle. Whether the barrier stays open or closed if the system fails should be decided in advance, based on the site's security needs.

Can paying and non-paying vehicles share the same car park?

Yes. Time-based tariffs, season tickets and free periods are defined separately; staff or season-ticket vehicles pass free of charge by plate, while visitor vehicles are charged according to the tariff. In mixed car parks such as hospitals, shopping centres and office buildings, each vehicle group gets its own entry, duration and charging rule, and payment is taken by kiosk, card terminal or mobile app.

How much does a parking management system cost?

There is no off-the-shelf package price. Cost depends on the number of entry and exit lanes, the barrier or road blocker type, whether an existing barrier is reused, how many plate recognition cameras are needed, the occupancy sign, the pay station and your tariff and reporting requirements. At Digital Bridge, scope, phases and cost are set out in a written proposal after a site survey.

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