Barrier

A barrier is a (or barricade) is a physical structure which blocks or impedes traffic flows.

Description

A barrier as measure is an intentional obstruction of traffic, irrespective of its mode.

Roadway barriers

• Wikipedia:Automatic full barriers, which serve to block roads at railway crossings
• Wikipedia:Fitch Barrier, a plastic barrel filled with sand or water, used on highways as an impact attenuator
• Wikipedia:Roadblock, a temporary installation to control or block traffic on a road
• Vehicle barriers (crash barrier), used to keep vehicles within their roadway
  • Wikipedia:Cable barrier
  • Wikipedia:Concrete step barrier
  • Wikipedia:Constant slope barrier
  • Wikipedia:F-Shape barrier
  • Wikipedia:Guard rail
  • Wikipedia:Jersey barrier or K-rail, a type of concrete barrier used to divide highway traffic
• Wikipedia:Crowd control barrier, a type of temporary fencing
• Wikipedia:Mojo Barrier, a type of temporary fencing used at festivals and concerts