The height limiting pole of Jimo Jialejia South Bridge belongs to that kind of pipe.

Belonging to the management of road transport management institutions. The agency is responsible for the unified management of road facilities, mainly by limiting the excessive driving of vehicles, ensuring road safety, and conducting regular inspections to ensure the safety of road facilities. Literally, the height limit pole is designed to limit the passage of big cars. The height of the carts is relatively high, and with the height limit pole, those carts can't get through.