- Location
- Prestatyn, Clwyd
- Main postcode district
- LL19
- Nearby (straight line)
- Rhyl (4 miles), Moreton (13 miles) and Heswall (13 miles)
- Survey and quote
- Free, with a fixed written quote
Dock traffic lights are red and green signals mounted outside and inside a loading bay to tell the driver and dock staff when it is safe to move or load. Interlocks are control links that stop equipment operating out of sequence, for example preventing the door opening until the trailer is restrained, or the leveller operating until the door is fully open.
Is this right for your site in Prestatyn?
Sites around Prestatyn that run night shifts often find traffic lights easier for drivers to read than staff waving or knocking on the cab door. Older docks in Prestatyn with separate door and leveller controls can be brought into a proper sequence by adding interlocks that stop equipment working out of order.
Whether your unit in Prestatyn has one dock or twenty, the survey looks at each bay's existing controls before we quote a fixed price in writing.
Our part of the job in Prestatyn is to survey, quote and manage; the fitting itself is done by specialist installation engineers working under our management. The survey and the written quote are free. Once the fixed price is accepted, we agree dates that work around your deliveries and shifts, including out-of-hours working where needed. Every installation is tested before handover, and you receive the documentation for each item fitted.
What happens on site when traffic lights and interlocks are fitted?
Fitting lights and interlocks is mainly electrical work, and each bay is out of use while its controls are connected and tested. Working bay by bay keeps the rest of the dock running.
- Fix the signals: the outside light is mounted on brackets at a height drivers can see, and the inside light beside the door.
- Run the cables: wiring is run in conduit or trunking between lights, sensors and control panels.
- Isolate and connect: the door and leveller supplies are isolated and locked off while the interlock wiring is connected, or a new bay panel is fitted.
- Test every sequence: each interlock is tested, including what happens if a step is attempted out of order.
- Brief staff: dock staff are shown the new sequence, and signs are fitted for drivers.
It helps if you can provide any electrical drawings for the dock, access to the distribution board, a person who can authorise isolations and an agreed order for releasing bays.
What does HSE guidance say about stopping drivers leaving too early?
HSE guidance (followed by HSENI in Northern Ireland) says there should be safeguards against drivers driving away from a loading bay too early, and it names traffic lights as one of the measures. Vehicle or trailer restraints, and the person in charge keeping keys or paperwork until it is safe, are the others listed in HSE's guide to workplace transport safety (HSG136) and its loading factsheet.
Traffic lights are a signal, not a physical barrier, so they work best as part of a clear procedure or alongside a restraint. Your risk assessment should decide the combination. In Northern Ireland the regulator is HSENI.
Interlocks also touch on door safety law. Under regulation 18 of the Workplace (Health, Safety and Welfare) Regulations 1992, or the Northern Ireland 1993 equivalent, powered doors need suitable and effective features to prevent them trapping anyone. Interlocks must never bypass those features, and door control work should respect BS EN 12453, the standard for safety in use of power-operated doors.
Read more in our guide to preventing drive-away and trailer creep.
The same published guide range applies across Wales; access, out-of-hours working and site conditions are confirmed at the free survey.
What does the free survey cover?
- How drivers are prevented from pulling away too early
- Control positions, isolators and any existing interlocks
- Traffic routes for vehicles and separation of pedestrians
- Condition of any existing leveller pit, kerb angles and pit drainage
- Whether planning, building control or a building warrant may be needed
- Scope to convert ground-level doors into docks or add lift tables
Options to discuss
Trailer presence sensors
Sensors that detect a trailer on the bay, used to switch lights, enable the door or trigger an inflatable shelter where no restraint is fitted.
Standalone LED traffic lights
A red and green pair for each bay, one outside for the driver and one inside for dock staff, switched manually from a control beside the door.
Regulations and approvals in Wales
HSE regulates workplace safety in Wales. Loading bays in Prestatyn need doors that meet regulation 18 of the Workplace (Health, Safety and Welfare) Regulations 1992, work equipment maintained under PUWER, and safeguards that stop vehicles leaving the dock too early. We check what applies at survey and build those measures into the design.
Questions about dock traffic lights and interlocks in Prestatyn
Do you remove and dispose of the old equipment?
Yes, where it is part of the scope. When we replace doors, levellers, shelters or seals at a site in Prestatyn, removal and disposal of the old equipment can be included and is itemised in the quote, so it is clear what is covered. If anything should be kept, such as a frame or motor that is still serviceable, we agree that at survey.
How do you price dock traffic lights and interlocks for a site in Prestatyn?
Guide budgets for supply and fit are £650 to £3,400 per bay, excluding VAT. The figure moves with size, insulation, the operator, electrics, access, any pit or groundworks and out-of-hours working. Where levellers are involved, the guide assumes an existing, sound pit. After the free survey you receive a fixed written quote, and that is the price for the agreed scope.
What warranty comes with new loading bay equipment?
New equipment comes with the manufacturer's warranty, which varies by product. Our workmanship terms are set out in writing in the quote for your Prestatyn site, so you can see what is covered before you commit. Check the warranty terms for any servicing conditions, and we can quote for planned maintenance once the installation is complete.
Will interlocks slow down my loading operation?
Interlocks add a fixed sequence, but each step takes only moments and staff soon get used to it. In practice many sites find the sequence saves time overall, because there are fewer arguments about when to open the door and less damage from levellers being raised into part-open doors.
Can you add lights and interlocks across a whole dock in one project?
Yes. A whole-dock project is usually phased bay by bay so most doors stay in use, and every bay ends up on the same control standard. That consistency makes training easier for staff and drivers, and it simplifies servicing because every bay behaves in the same way.
Dock traffic lights and interlocks near Prestatyn
If your site is not in Prestatyn itself, it may be near one of these: Rhyl (4 miles), Moreton (13 miles) and Heswall (13 miles). Pick the closest.
Other loading bay services in Prestatyn
Full guide to dock traffic lights and interlocks · Everything we do in Prestatyn
Send a few photos of the dock and a short description of the problem, and we will come back to you about your Prestatyn site.