Yes, have seen these in RL in Euro. & online. Maybe a Sherman tank can blow through.
For city or muni., my thought, prob = big-time money to install & maintain. Headache/logistics to operate?
How operated - staff on site at each location to lower, then raise? Remote like a garage door opener provided to __?
Like employer keycard to swipe? Access code provided to __ to punch & transmit from vehicle, and changed how often? Sorry, to be so non-tech conversant re ^.
Also, like a trolley-line or light rail-- only works where 'planted.' If parade or heavy-traffic event traffic flows on other routes, no help.
JM2cts, could be wrong.