One type of flexible barrier is the Jersey Barrier. These are modular concrete barriers that can be used to prevent and control traffic flow and speed, or deter vehicular traffic. They can be set up...

One type of flexible barrier is the Jersey Barrier. These are modular concrete barriers that can be used to prevent and control traffic flow and speed, or deter vehicular traffic. They can be set up in a wall fashion to prevent vehicles from entering an area or be used to separate vehicles into lanes.