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Traffic cones are road traffic control markers that are used to temporarily direct traffic. They are lightweight, easily transportable and highly visible, making them a cheap, efficient and effective method of alerting drivers to new traffics and directions. They are often used during roadwork and emergency traffic direction, although they can also be used for less traditional purposes, such as sports equipment. Traffic cones are a vital component of a larger road traffic control system.
Traffic Cone Product Basics
Traffic cones are generally orange for increased visibility, but they are also available in various bright colors such as pink and bright yellow. The colors should be visible in both inclement weather and sunshine. Cones range in sizes from about 12 inches tall to 3.28 feet tall. Larger traffic cones are used for freeway and highway locations as they help drivers who are moving faster and approaching at greater distances to see them.
Traffic cones are composed of a base, which is usually black, upon which the orange conical section sits. The cones are hollow, which makes them more lightweight and prevents serious damage to vehicles or people that might come into contact with them.
Traffic cones are manufactured from a flexible polymer, often polyvinyl chloride with plasticizer additions. This material is also used for hoses and piping, and the traffic cone has a similar texture and flexibility, while still maintaining a rigid, durable form when in the upright position.
Traffic Cone Accessories
Base stabilizers are also available for traffic cones. These stabilizers are generally made out of heavy rubber or plastic and fit over the top of the cone and slide to the base. The stabilizer is heavy to better ground the cone and prevent it from falling over.
Important Traffic Cone Guidelines
Traffic cone design, material, and size are usually governed my local or federal laws in a given location. In the United States, this is EN 13422:2004 + A1:2009. This regulation governs vertical road signs as well as portable deformable warning devices and delineators, road traffic signs, and cones and cylinders. This law is also an international regulation, and is widely used in developed countries.
Additionally, federal guidelines in the United States are spelled out in the Manual on Uniform Traffic Control Devices, a document that governs road markers. Some of the provisions include visibility requirements, such as the necessity for road markers to be more visible during the night through color and reflective strip use. This document is available here: http://mutcd.fhwa.dot.gov/