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Sidegating, when two people attempt unauthorized side-by-side entry through a turnstile, has become a growing security issue as changing regulations and customer demands for increased pedestrian and wheelchair user comfort dictate the need for wider turnstiles.

If a lane is wide enough to comfortably fit a wheelchair, it is also wide enough to fit two pedestrians side-by-side. Until now, turnstiles have been unable to detect this kind of behavior, which leads to increased risk for unauthorized access and security breaches.

A new optical technology reduces the risk of this problem. Smarter Security, the intelligent entrance controls company, has launched its Fastlane Glassgate 155 intelligent optical turnstiles solution, claiming that security teams must approach insider threats and collusion with a layered security strategy that starts at the front of the building. 

The optical turnstile technology is the first of its kind to identify and alert when sidegating is occurring. 

An intelligent infrared matrix powered by neural network algorithms senses who or what is going through the turnstile in real-time and makes thousands of calculations per second based on speed of passage, luggage being carried or pulled, distance to the pedestrian behind and direction of movement, to determine if the entry should be authorized. 

The system can distinguish between people and objects to minimize nuisance alarms, and process unsurpassed throughputs of up to one person per second. The system eliminates false alarms, improves compliance and strengthens effective building security, according to the company website.

IP communication and control maximizes uptime and improves performance.

The turnstiles are installed in thousands of iconic building lobbies, government buildings, corporate campuses and universities around the world, according to