- Location
- Lochgilphead, Argyll and Bute
- Main postcode district
- PA31
- Nearby (straight line)
- Dunoon (20 miles), Oban (26 miles) and Greenock (27 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 Lochgilphead?
Older docks in Lochgilphead with separate door and leveller controls can be brought into a proper sequence by adding interlocks that stop equipment working out of order. Food and chilled operations around Lochgilphead with inflatable shelters often add interlocks so the shelter only inflates once a trailer is docked and restrained.
Whether your unit in Lochgilphead 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 Lochgilphead 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 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.
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.
The same published guide range applies across Scotland; access, out-of-hours working and site conditions are confirmed at the free survey.
What does the free survey cover?
- How often each door cycles during a typical shift
- Scope to convert ground-level doors into docks or add lift tables
- Dock height and the mix of trailers you load
- Clear opening width and height for each door
- Wheel guide positions and yard markings for reversing vehicles
- Bumper position and wear or damage on the dock face
Options to discuss
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.
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.
What do the rules in Scotland mean for the work?
Energy standards for buildings in Scotland are set out in Section 6 of the Building Standards Technical Handbook. For new or replacement loading bay doors in Lochgilphead, we confirm the figure that applies to your project and check what applies at survey, rather than relying on rules written for elsewhere in the UK.
For Lochgilphead, 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 Lochgilphead
Which building and safety rules apply to a site in Lochgilphead?
It depends on which UK nation the site is in. England and Wales use Building Regulations approval, Scotland uses building warrants and Northern Ireland uses building control approval from the council. Workplace safety is regulated by HSE in Great Britain and HSENI in Northern Ireland, and energy rules differ between nations. For your site in Lochgilphead, we check what applies at survey and design to it.
Do you cover Lochgilphead for dock traffic lights and interlocks?
Yes. We take on dock traffic lights and interlocks for businesses in Lochgilphead and across Argyll and Bute. We survey the site, provide a fixed written quote and manage the installation, with specialist installation engineers working under our management. Visits are arranged in advance at a time that suits your operation, and the same single contact stays with the job through to handover.
Will you deal with building control and planning for a project in Lochgilphead?
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.
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.
Can interlocks be fitted to a manual loading bay door?
Yes. A door position switch fitted to a manual door can confirm when it is fully open or fully closed. That signal lets the traffic lights change automatically and stops the leveller being raised until the door is out of the way.
Dock traffic lights and interlocks near Lochgilphead
If your site is not in Lochgilphead itself, it may be near one of these: Dunoon (20 miles), Oban (26 miles) and Greenock (27 miles). Pick the closest.
Other loading bay services in Lochgilphead
Full guide to dock traffic lights and interlocks · Everything we do in Lochgilphead
Use the quote tool to tell us about the doors, levellers or shelters at your Lochgilphead site, and we will be in touch to arrange the next step.