HiMast™ Passive Posts

HiMast™ Passive Sign Support

The HiMast™ passive post is recognised across the industry due to its frangible design and non-energy absorbing qualities. HiMast™ provides an alternative to the traditional structural steel poles that are protected by safety barriers. HiMast™ is designed to break away following a vehicle impact to minimise the harm to the vehicles occupants.

Features & Benefits

Benefits

• Multi-Directional Protection: They perform consistently regardless of the angle of collision, making them ideal for complex junctions and roundabouts.
• Non-Energy Absorbing: Classified as 100NE:2, meaning they don’t transfer force to the vehicle, reducing injury risk.
• No Safety Barrier Required: Unlike traditional steel poles, HiMast™doesn’t need crash protection, saving on materials and installation.
• Quick Replacement: Damaged posts can be unbolted and swapped without disturbing the foundation, reducing downtime and labour costs.
• Eco-Friendly Lifecycle: Damaged sections can be recycled, and the entire post is designed with sustainability in mind
• Wide Range of Sizes: From compact urban posts to large motorway supports, HiMast™ fits virtually any road type.
• Baseplate System: Allows for above-ground mounting, ideal for retrofit projects or constrained sites.

HiMast™ Fixing & Installation

HiMast™ posts are mounted using anchorage units and baseplates designed for quick installation and easy replacement:

• Baseplate & Bolt System: In the event of a collision, the damaged post can be unbolted from the baseplate and replaced without disturbing the foundation.

• Anchorage Units: Available in different sizes (H500, H1000, H2000, H3000, H4000) to suit various post profiles and load requirements.

• Sign Mounting Hardware: Compatible with standard sign brackets, clamps, and banding systems for secure attachment.

• Recyclability: Damaged sections can be 100% recycled, reducing environmental impact.

Himast™ Clips

In a passive safety system like HiMast™, every component (including the clips) must be compatible with the mast's breakaway performance and comply with BS EN 12767 and BS EN 12899 standards. Using the correct clips ensures:

• The sign remains secure in normal conditions

• The post performs as designed in an impact

• Maintenance and replacement are straightforward

Purpose of HiMast™Clips

• Secure Sign Mounting - They hold traffic signs firmly in place on the HiMast™ post profile.

• Profile-Specific Fit - Designed to match the post's aluminium section so the sign sits flush and stable.

• Durability - Made from corrosion-resistant materials to withstand outdoor conditions.

• Ease of Installation - Can be fitted quickly on site, often without specialist tools.

How They Work in the System

• Used with Brackets/Banding - Clips may work alongside other fixings like stainless steel banding or bespoke brackets, depending on sign size and wind loading.

• Non-Intrusive - Designed to grip without damaging the post's structural integrity.

• Replaceable - If a post is damaged in a collision, the clips can be removed and reused where possible.