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Traffic cones come in a vast array of shapes and sizes, and can be used for a huge variety of purposes. However, the most common examples are the orange and white cones used within roadworks. Smaller cones usually have a base as part of the moulding, often filled with sand to keep them in place, whilst on larger cones a heavy black rubberised base is often used.
As noted above, cones used for Roadworks are normally round in plan and orange in colour, with a white painted stripe or reflective sleeve around the cone. They are used widely within roadworks, to mark out the available running lanes for traffic, delineate lanes and flows at junctions, act as a barrier within Contraflows and so on.
Particularly common within Contraflows, where standard traffic cones are too large, and a potential hazard if knocked out of place, a system of narrow, cylindrical bollards was developed which were also Orange with a reflective white sleeve.
In recent years, a sudden rash of different coloured cones have appeared with roadworks sites. Green and red have been used to guide site traffic between the site and the traffic lanes, but other colours such as blue and purple have also been used, often with their precise meaning known only to the health and safety officers on the site concerned, and with different meanings elsewhere.
These are typically triangular in plan and yellow in colour. They have the No Waiting sign printed on each of the three sides, normally below the name of the police force who own the cone. They are used to help enforce temporary no waiting areas when a local event is due to be held, thus ensuring the road is kept clear to accommodate the additional traffic. They can also be used in an emergency to identify a road hazard.
Many undertakers possess Black Cones to secure themselves a space outside a church. These are often standard orange cones which have been painted black, and are perhaps the least ignored of all the cones in use on our roads.