No Entry - Class RA1 - Safety Signs by Caledonia Signs

The No Entry – Class RA1 sign is a regulatory traffic sign used in the UK to indicate that vehicles are prohibited from entering a particular road or area. It is a red circular sign with a white horizontal bar across the middle, a universally recognised symbol for no access. As a Class RA1 sign, it carries legal authority, and drivers must comply with the restriction to avoid penalties or accidents.

Used as a temporary sign in situations such as roadworks, events, or emergency diversions, it is commonly placed at the start of private one-way streets, restricted zones, or areas closed for safety or operational reasons. It prevents vehicles from entering roads where travel in that direction is unsafe or not permitted, thereby reducing the risk of head-on collisions or traffic conflicts. It also helps to control traffic flow by directing vehicles along permitted routes.

Crucial in maintaining road safety and orderly traffic management. It prevents dangerous wrong-way driving and ensures that drivers follow designated routes, reducing the likelihood of accidents and improving overall traffic efficiency.

Traffic sign design to Chapter 8, DfT and TSRGD guidelines - Key components of traffic management and road safety regulations in the UK. Each plays a distinct but interrelated role in how road signs, markings, and temporary traffic control measures are designed, installed, and maintained.

Supplied complete with channeling for post mounting.

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.