- Location
- Dunoon, Argyll and Bute
- Main postcode district
- PA23
- Nearby (straight line)
- Greenock (6 miles), Helensburgh (8 miles) and Vale of Leven (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.
Where does this fit at a dock in Dunoon?
Older docks in Dunoon with separate door and leveller controls can be brought into a proper sequence by adding interlocks that stop equipment working out of order. Loading docks in Dunoon where drivers wait in their cabs for a hand signal can replace guesswork with a clear red and green light at every bay.
Food and chilled operations around Dunoon with inflatable shelters often add interlocks so the shelter only inflates once a trailer is docked and restrained.
We never ask you to commit before you have a fixed price. A free survey at your Dunoon site comes first, followed by a written quote. When the order goes ahead, we plan the installation around your operation, book any out-of-hours working you need and manage the specialist installation engineers on site. The job ends with a full test, a run-through for the people who will use the equipment and a set of handover documents.
How do inside and outside dock traffic lights work together?
Inside and outside dock lights always show opposite colours: when the driver sees red, dock staff see green, and the other way round. Each light is aimed at a different person, so each one only ever gives one instruction.
- Outside light, facing the driver: red means stay on the bay because loading is in progress; green means the bay is clear to leave or to reverse on to.
- Inside light, facing dock staff: green means the trailer is in place and it is safe to open the door and load; red means do not open the door or enter the trailer.
Lights can be switched in three main ways:
- Manually, by a switch beside the door, relying on dock staff to change it at the right moment.
- By door position, so opening the door automatically turns the outside light red.
- By the restraint, so the light only changes when the trailer is physically held.
Can traffic lights and interlocks be added to older loading bays?
Yes, traffic lights and interlocks can be added to most older loading bays, although some need new control panels before the interlocks can work.
- Manual doors: a door position switch can confirm the door is fully open or closed, which lets lights and leveller interlocks work even without a motor.
- Older powered doors and levellers: basic control boxes may not have connections for interlocks, so a combined bay panel can replace separate controls.
- Mixed equipment: doors and levellers from different suppliers can usually be brought under one interlock panel, so every bay works the same way.
Interlocks cannot make faulty equipment safe. If a door or leveller has a defect, it should be repaired before interlocks are added, and the survey will flag anything we find. Upgrading lights and interlocks at the same time as replacing a door or leveller is often the most economical moment to do it.
The same published guide range applies across Scotland; access, out-of-hours working and site conditions are confirmed at the free survey.
What we look at on site
- Yard gradient and the slope of the approach to the dock
- Temperature requirements for chilled, frozen or ambient goods
- Wheel guide positions and yard markings for reversing vehicles
- How often each door cycles during a typical shift
- Bumper position and wear or damage on the dock face
- Gaps around trailers where heated or chilled air escapes
Options to discuss
Door-linked lights
Lights that change automatically with the door position, using a door switch or a signal from the door control panel, so the outside light turns red as the door opens.
Full bay interlock panel
A single control panel that runs the door, leveller, restraint and shelter in the correct sequence, with indicators showing which step is active or blocked.
Which rules apply in Scotland?
Doors and dock equipment installed in Scotland may carry the UKCA or the CE mark, and we pass on the documentation for everything fitted in Dunoon. Because building warrant and planning questions can affect the programme, we check what applies at survey and raise any approvals early rather than assuming none are needed.
For Dunoon, installation work is planned in advance rather than on a routine round. The survey and quote are free; where we can, we group installation visits with other work nearby, and any travel and accommodation costs for fitting are set out clearly in the quote.
Questions about dock traffic lights and interlocks in Dunoon
Will you deal with building control and planning for a project in Dunoon?
We check at survey whether the work is likely to need approval. Forming a new opening or dock pit may need Building Regulations approval, a building warrant or building control approval, depending on the nation, and external structures such as loading houses can need planning permission. Where approval is needed, we explain what is involved, work with your designer or agent, and build it into the programme.
Is the site survey in Dunoon free?
Yes. For new installations, replacements, upgrades, conversions and complete bays, the site survey and written quote are free and come with no obligation. The survey lets us measure the openings, check the dock and structure, and understand how the bay is used, so the quote reflects your site. Repair and servicing visits are different: they are chargeable, with the price agreed before anyone attends.
What details do you need from us to quote for dock traffic lights and interlocks?
To get started, send the site address in Dunoon, the number of bays or openings, approximate sizes, and photos of the dock from inside and outside. Tell us what vehicles you load, what goods you handle and any temperature requirements. Drawings help on new builds. We then arrange the free survey and confirm the details before the written quote is issued.
Are dock traffic lights enough on their own to stop drive-away?
Traffic lights on their own are a signal, not a physical barrier, so they depend on drivers obeying them. HSE lists traffic lights among the measures against early drive-away, and many sites combine them with key or paperwork control or with a vehicle restraint. The right combination should come from your workplace transport risk assessment.
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 Dunoon
Other towns within reach of Dunoon on our coverage list include Greenock (6 miles), Helensburgh (8 miles) and Vale of Leven (13 miles), all covered on the same terms.
Other loading bay services in Dunoon
Full guide to dock traffic lights and interlocks · Everything we do in Dunoon
Ready to talk about a loading bay in Dunoon? Call us, or send the details through the quote form.