Roadblock

For other uses, see Roadblock (disambiguation).

A roadblock is a temporary installation set up to control or block traffic along a road. The reasons for one could be:

• Roadworks
• Temporary road closure during special events
• Police chase
• Robbery
• Sobriety checkpoint
• Protests

Concrete barrier

In peaceful circumstances, they are usually installed by the police or road transport authorities; they are also commonly employed during wars and are usually staffed by heavily armed soldiers in that case. During protests and riots, both police and demonstrators sometimes use roadblocks.^[1][2]

• 
  Roadblock in the West Bank
• 
  Polish barricade during the Warsaw Uprising (1944)
• 
  Roadblock during roadworks at Hisingen, Sweden, 2013
• 
  'Swarming roadblocks' Extinction Rebellion, (UK) (23 November 2018).

See also

• Roads portal

• Road traffic control
• Barricade
• Boom barrier
• Braess's paradox
• Illinois v. Lidster
• Safety barrier
• Traffic break