Give every vehicle the right level of access
On a busy commercial site, vehicle access can change from day to day. Staff come and go, contractors arrive for short projects, visitors need directions, and delivery drivers may only need access to one area.
ANPR can make authorised vehicle entry more convenient, but the system works best when the site has clear rules for which vehicles are allowed in, when they can enter, and how temporary access is handled.
This guide explains how to plan those rules and where ANPR fits into a wider access control process.
Start with vehicle groups
Before adding number plates, decide who needs vehicle access. A simple list might include:
- Regular staff: Vehicles that need ongoing access, possibly limited to certain days or times.
- Contractors: Vehicles that need access for a defined period or project.
- Visitors: Vehicles that need approval before arriving or at the entrance.
- Deliveries: Vehicles that may need a separate entrance, delivery window or staff contact.
These groups help you create consistent access rules instead of treating every vehicle the same. They also make it easier to review access when staff roles or projects change.
Give temporary vehicles an end date
Contractor and visitor access should not stay active indefinitely by default. When adding a temporary vehicle, record who approved it, what it needs access for, and when that access should end.
A short review process can prevent old permissions from accumulating. For example, a site manager could review contractor plates at the end of each project and remove access that is no longer required.
For visitors, decide how approval works before they reach the gate. They might be pre-approved by an employee, directed to an intercom, or asked to contact reception. ANPR can check an authorised plate, but it cannot tell you whether the person driving is the expected visitor.
Remember that a plate identifies a vehicle
A recognised registration plate shows that a vehicle is on the authorised list. It does not prove who is driving or how many people are in the vehicle.
That distinction matters when access depends on an individual rather than a vehicle. A shared company van, for example, may be used by several employees. If the site needs to know which person is entering, consider whether an additional check or access method is needed.
Plan for vehicles that are not recognised
A plate may not be read successfully every time. The camera’s view, lighting, weather, vehicle position, or a damaged or obscured plate can affect recognition. Decide what should happen when an authorised vehicle is not recognised and what visitors should do if their plate has not been added.
Depending on the site, the backup process could involve an intercom, a call to reception, or another approved access method. Test that process during installation so drivers are not left unsure what to do at the entrance.
Review access and records regularly
Set a routine for checking authorised plates. The right interval depends on how quickly vehicles and permissions change at your site. A business with frequent contractor visits may need more regular reviews than a small office with a stable staff list.
Also decide who can add or remove plates and who can view access records. Limit these tasks to people who need them, and explain to staff and visitors what vehicle information is collected and how it is used.
Is ANPR suitable for your business park?
ANPR can help reduce the need to issue vehicle fobs or ask drivers to enter a code. It is most useful when authorised vehicles can be clearly defined and the site has a sensible process for visitors, temporary access and exceptions.
Before installation, map the vehicle routes, entry rules, camera position and backup process. This will help you decide whether ANPR alone is suitable or whether it should work alongside app control or another method.