My suggestion is that we make it against the rules to place barricades at check points like this AT ALL.
If that's not possible: No check points being closed unless Blufor/Opfor are present at the check point to open/close it. I've seen all check pointed blocked like this before, without anyone at any of them.
I dont see what beneficial purpose it has to the server/roleplay..? It cuts off civilians doing legal jobs as well as terrorists trying to interact with others. Why is the pole/gate not sufficient enough? Also, players are supposed to be marking the map with closed check points, but i've yet to see anyone do this.