Final answer:
A concrete Jersey barrier is a type of barrier commonly used in traffic control and highway safety, named after the State of New Jersey. It is made of reinforced concrete and is effective at redirecting and absorbing the impact of vehicles.
Step-by-step explanation:
A concrete Jersey barrier is a type of barrier commonly used in traffic control and highway safety. It is made of reinforced concrete and designed as a modular unit that interlocks with other barriers to form a continuous system. These barriers are typically used to separate lanes of traffic, prevent cross-median collisions, and protect pedestrians and structures.
Concrete Jersey barriers are effective at redirecting and absorbing the impact of vehicles, reducing the severity of accidents. They are often used in construction zones, highways, and other areas where temporary or permanent traffic control is needed.
These barriers are named after the State of New Jersey, where they were first used in the 1950s. They have since become widely adopted in transportation projects around the world.