Boom Barrier Types Explained

Key takeaways

• The standard barrier has one straight arm that rises vertically.
• A folding arm bends in the middle when raised so it fits under low ceilings, such as basement parking.
• Telescopic arms extend in sections to cover wide lanes while keeping the housing small.
• Fence-style arms deter people from walking under the arm.
• Start with lane width, available height, vehicles per hour and the access method (RFID, ANPR, ticket or manual).

Quick checklist before you decide

What to check on site

• Lane width and whether height is restricted
• Vehicles per hour at peak time
• Access method: RFID, ANPR, ticket or manual
• Pedestrian crossing near the lane
• Cable routes and plinth location

How installation usually goes

Survey and preparation

The barrier cabinet is fixed on a concrete plinth with conduit for power and signal cables. The arm length is matched to the lane width, loops and sensors are placed, and the opening and closing speed is tuned for the traffic.

How the system works day to day

A motor housing lifts and lowers the arm. The controller takes a signal from a remote, card reader, ANPR camera or guard station. Loop detectors or photocells keep the arm up while a vehicle is underneath.

Frequently asked questions