What are the visibility and signage requirements for car park height barriers?

Car park height barriers must be clearly visible to approaching drivers and include legible, reflective signage that shows the maximum clearance height. These safety measures help prevent accidental collisions and ensure compliance with UK car park and highways guidance.

Visibility Requirements
💡 Barriers should be finished in high-visibility colours such as yellow, black/yellow, or red/white
🌙 Add reflective markings or illuminated features for night-time use
🚗 Ensure the barrier is clearly seen from the vehicle approach distance

Signage Requirements
📏 Display the maximum height clearance (in metres) prominently on both sides
🔶 Use RA1 or RA2 reflective aluminium signs to meet UK highway visibility standards
🏗️ Place signs directly on the barrier crossbeam or an adjacent post at driver eye level

Best Practice for Safety
✅ Fit additional height-warning signage ahead of the barrier entrance
⚙️ Maintain clear ground markings and no visual obstructions
📋 Comply with BS EN 12899-1 for fixed vertical road traffic signs