Understandable, some of the sites I’m describing have a combination of more than one you’re talking about.

Bollards are the sidewalk kind, all metal or short metal-cored concrete poles, optionally also used to protect building corners and natural gas meters on properties with vehicle traffic. The kind that pops up in the middle of roads is a security barrier, which I think are hydraulic and rise to wholly block even heavy vehicles up-to-and-including heavy trucks.