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How Does a Car Barrier Work?

Jun. 04, 2024

How Does a Car Barrier Work?

A car barrier, also known as a parking barrier or parking bollard, is a physical barrier used to control vehicular access to a certain area or space. There are several types of car barriers, each with its own mechanism of operation. Here, I’ll explain the working principle of a commonly used type of car barrier: the automatic rising arm barrier.

Detection and Activation: When a vehicle approaches the entrance or exit point controlled by the car barrier, a detection system such as a loop sensor, infrared sensor, or RFID reader detects the presence of the vehicle. This detection triggers the activation of the barrier system.

Barrier Arm Movement: Upon activation, the motorized mechanism of the car barrier raises or lowers the barrier arm to either allow or prevent access to the designated area. The barrier arm is typically made of a sturdy material such as aluminum or steel and is designed to withstand impact from vehicles.

Modular Vehicle Barrier

Control and Authorization: The operation of the car barrier may be controlled by various means, including remote control, keypads, access cards, or vehicle transponders. Authorized users, such as employees or residents, can activate the barrier to gain entry, while unauthorized vehicles are prevented from accessing the area.

Safety Features: Automatic car barriers are equipped with safety features to prevent accidents and injuries. These may include safety sensors that detect obstacles or obstructions in the path of the barrier arm, emergency stop buttons for manual intervention, and warning lights or audible alarms to alert pedestrians and drivers of the barrier’s movement.

Integration with Access Control Systems: Car barriers can be integrated with access control systems, security cameras, and other monitoring devices to enhance security and surveillance capabilities. They may also be linked to centralized management software for remote monitoring, logging access events, and generating reports.

Power Supply and Backup: Car barriers require a power source to operate the motorized mechanism. They are typically connected to the mains electricity supply but may also have battery backup systems or solar panels for use in areas where electrical power is unavailable or unreliable.

Overall, car barriers provide an effective means of controlling vehicular access to restricted areas, parking lots, gated communities, commercial premises, and other controlled environments. Their automated operation, coupled with integration with access control and security systems, enhances safety, security, and convenience for both property owners and authorized users.


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