In the US they're often used to divide entire lanes for a long distance. https://shur-tite.com/WebData/images/ca74404b-a476-4826-8e47-d0f0c4420f7e.jpeg https:/

In the US they're often used to divide entire lanes for a long distance. https://shur-tite.com/WebData/images/ca74404b-a476-4826-8e47-d0f0c4420f7e.jpeg https://shur-tite.com/WebData/images/ca74404b-a476-4826-8e47... They're somewhere in between a line and a fixed bollard. They are more effective at encouraging drivers to voluntarily stay in their lane than a line is, but they still don't do anything to prevent vehicles from crossing in emergency situations, accidents, or people who don't care about the paint on their car. It would be cost prohibitive to replace this usage with retractable bollards because these often extend for long distances.