Tailgating Detection: How Waist-High Turnstiles Prevent Unauthorized Access

Preventing unauthorized access to secure areas is of utmost importance for organizations across various industries. Tailgating, or unauthorized individuals following authorized personnel through an access point, poses a significant security risk. To address this concern, waist-high turnstiles equipped with tailgating detection technologies have emerged as effective solutions. This article will explore how waist-high turnstiles with tailgating detection capabilities prevent unauthorized access and enhance overall security.

  1. The Tailgating Phenomenon:

Tailgating occurs when an unauthorized individual gains access to a secure area by closely following an authorized person through an access point. This can happen due to a lack of awareness, social engineering, or intentional evasion of security measures. Tailgating compromises security protocols and exposes a facility to potential threats ranging from theft and sabotage to unauthorized information access. By effectively detecting and preventing tailgating, waist-high turnstiles play a crucial role in addressing this security vulnerability.

  1. Optical Sensors and Machine Vision:

Waist-high turnstiles with tailgating detection capabilities employ advanced optical sensors and machine vision technologies. These sensors and cameras are strategically placed to monitor the entry point and detect any unusual or unauthorized activity. The optical sensors analyze the number and movement of individuals passing through the turnstile, comparing it with the number of authorized access permissions granted. If the number of individuals exceeds the authorized limit, an alarm is triggered, notifying security personnel of a potential tailgating attempt.

  1. Infrared Beams and Stereoscopic Cameras:

Some waist-high turnstiles utilize infrared beams and stereoscopic cameras to enhance tailgating detection. Infrared beams are positioned to create an invisible barrier across the entry point. If someone attempts to tailgate by crossing the beams without proper authorization, an alarm is triggered. Stereoscopic cameras capture depth perception, enabling the system to detect the presence of more than one person passing through the turnstile. This combination of infrared beams and stereoscopic cameras provides a multi-layered approach to tailgating detection, minimizing the risk of unauthorized access.

  1. Biometric Authentication Integration:

By integrating biometric authentication technology with waist-high turnstiles, organizations can further strengthen their tailgating prevention measures. Biometric authentication methods such as fingerprint scanning or facial recognition provide a higher level of security compared to traditional access control methods like keycards or PIN codes. When an authorized individual presents their biometric credential at the turnstile, it not only verifies their identity but also ensures that only one person is granted access. Integration of biometrics with waist-high turnstiles greatly reduces the chances of unauthorized individuals tailgating behind authorized personnel.

  1. Real-Time Alerts and Video Verification:

When a tailgating attempt is detected by waist-high turnstiles, immediate action is crucial to prevent any security breaches. These turnstiles are equipped with real-time alert systems that notify security personnel of a possible tailgating event. The alerts include detailed information about the location, time, and nature of the incident, allowing security personnel to respond promptly. Video verification is also often integrated into the system, providing live or recorded footage of the tailgating event, enabling security personnel to assess the situation accurately and take appropriate action.

  1. Training and Awareness:

While waist-high turnstile with tailgating detection technologies provide a strong layer of security, ensuring proper training and awareness among personnel is equally important. Employees should be educated about the risks associated with tailgating and the importance of following security protocols. Regular training sessions and reminders about the use of access control systems and proper adherence to security measures can help create a security-conscious culture within an organization. Combining turnstile technology with well-trained personnel enhances the effectiveness of tailgating prevention measures.


Tailgating detection technologies integrated into waist-high turnstile offer an effective solution to prevent unauthorized access and enhance overall security. By utilizing optical sensors, infrared beams, stereoscopic cameras, and integrating biometric authentication, these turnstiles provide multi-layered security measures. Real-time alerts and video verification enable swift response to tailgating attempts, ensuring the safety of secure areas. However, it is important to remember that technology alone is not enough. Proper training and awareness among personnel are essential to complement the effectiveness of waist-high turnstiles in preventing unauthorized access. By adopting tailgating detection technologies, organizations can significantly enhance their security measures and protect their facilities, assets, and personnel from potential threats. 

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