Bollard
Bollards (right)
A bollard was a metal post used to block traffic.
In 2022, a Toronto alley La'An Noonien-Singh and James T. Kirk were standing in had yellow bollards in it. (SNW: "Tomorrow and Tomorrow and Tomorrow")
In 2385, silver bollards lined a passage under the awning of School shuttle stop E01. (ST: "Children of Mars")