Car park height-restriction barriers must be highly visible and clearly signed so drivers can identify the restriction in time to stop or divert. Good visibility and signage are essential for accident prevention, liability reduction, and UK compliance.
Visibility requirements
- Use high-visibility colours such as yellow/black or red/white
- Ensure the barrier is clearly visible from the approach distance (not hidden by bends, ramps, or parked vehicles)
- Fit reflective bands or markings for low-light and night-time conditions
- Consider additional lighting in poorly lit car parks or covered areas
Signage requirements
- Display the maximum height clearance (in metres) clearly and prominently
- Use reflective aluminium signs (RA1 or RA2 grade) for visibility in all conditions
- Position signage:
- On the barrier crossbeam and/or
- On adjacent posts at driver eye level
- Show metric and imperial units where possible (e.g. 2.1 m / 6’10”)
Best practice for safety
- Install advance warning signs before the entrance (especially where there’s limited turning space)
- Keep line markings and approach routes clear of obstructions
- Ensure signage is clean, undamaged, and legible at all times
- Follow relevant standards such as BS EN 12899-1 for traffic signs and general UK highway guidance
Practical takeaway
Most height-barrier incidents happen because drivers don’t see the restriction early enough — not because the barrier isn’t strong enough. Clear visibility and early warning make the biggest difference.
At Aremco Barriers, our UK-manufactured height-restriction systems are supplied with compliant reflective signage and high-visibility finishes, helping you create a safer, clearer, and fully compliant car park entrance.
