Heavy Plant Crossing - Class RA1 - Safety Signs by Caledonia Signs
- Caledonia Catalogue Page: 113 (EDITION 26)
- ISO Compliant Safety Signage - wherever possible.
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Heavy Plant Crossing signs are essential safety warnings used to alert drivers and pedestrians that large construction or agricultural machinery may be crossing or operating near the road ahead. These vehicles, often slow-moving and bulky, can pose significant hazards due to their size, reduced maneuverability, and limited visibility.
The importance of these signs lies in giving advance notice to road users so they can slow down, stay alert, and be prepared to stop if necessary. This helps prevent accidents caused by sudden encounters with heavy machinery, which can lead to serious injuries or damage.
These signs are typically installed near construction sites, quarries, farms, or any location where heavy plant equipment regularly crosses or moves along public roads. They are placed well before the crossing point to allow ample reaction time for approaching traffic.
Overall, Heavy Plant Crossing signs play a crucial role in protecting both the operators of heavy machinery and the general public by ensuring everyone is aware of potential hazards and can take appropriate precautions.
Materials Explained
Any product outside of our standard choice of material/size range starts with a 5. This may include items such as rolls of tape, sign frames, floor graphics or banners. Below you can find a more detailed description of the miscellaneous material options available for this sign design.
Class RA1: Manufactured from 3mm aluminium composite with an engineering grade retroreflective sheeting to ensure visibility during day and night. This reflective layer helps headlights bounce light back to drivers, making the sign readable in low-light conditions and offers approximately a 7 years lifespan. Aluminium composite is a lightweight, durable material which holds no scrappage value - reducing the potential for theft. It is weather and rust resistant - overall, RA1 signs are designed to be durable, weatherproof, and highly visible to ensure the safety of road users around temporary worksites.
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Tags: 57918, Temporary, Private, Road, Traffic, Construction, Sites, RA1, Composite, Zintec, Page113.











