TRAFFIC-LINE Works Barriers are manufactured in HDPE material which is UV resistant, and is coloured bright orange with red/white reflective panels which makes them highly visible in day or night conditions. The Barriers can be connected to each other by an integrated ‘hook and eye’ system, which makes them very adaptable for use on uneven ground. The Barriers are lightweight but stable incorporating non-trip feet that swivel 360° for compact transportation and storage. These barriers are suitable for applications involving road works, construction sites, events etc. Conforms to requirements of BS EN 8442 Reflectivity to BS EN 12899-1. Chapter 8 – The Traffic Signs Manual. The Red Book 2013 Traffic Signs Regulations & General Directions