Date icon01 March 2019

What is turnstile access control? 

Turnstile access control

Designed to work seamlessly with the ebb and flow of people in and out of a building, turnstile access control should be as unobtrusive as it is effective. While turnstile gates and barriers exist to keep unauthorised individuals out, they should also be as practical as possible for those with the right access.

We’ve gathered the basics on turnstile access control systems to act as an introduction to this physical security technology.

What are turnstiles?

Access control turnstiles automatically regulate entry to a designated building or area, usually on a one-by-one basis. Most turnstile gates require only low power to work, so can be installed with safe operating voltage. Unmanned turnstile systems can be programmed to admit access only to those with specific security information or credentials, without the need for human intervention.

What are turnstiles used for?

As the actual barrier hardware that either admits or refuses access to a space, turnstile gates control not only who can pass through them, but how many at a time. Depending on where they are installed, access control turnstiles of different types and sizes can be used to admit pedestrians or vehicles.

Turnstile systems can be surprisingly versatile. Switching turnstile operating modes can change their function from allowing single passage in one direction to single passage in both, from locked in both directions, to free passage in either one or both directions. A lock chamber access mode can add a level of video or biometric verification to a turnstile for extra security.

What types of turnstile entry systems are there?

As automated technologies have become more advanced over time, so too have turnstile gate entry systems. Not only is there a range of turnstile barrier types to suit different spaces and access control requirements, turnstiles can be integrated with peripheral or wider security systems in order to further verify entry permission.

Types of turnstile gates

Waist height pedestrian turnstile gates : One of the most common types of access control turnstile, waist height pedestrian gates can take the form of a revolving tripod, rising arm, sliding or rotating barrier to ensure only one person passes through at once. Once access is granted, some waist height turnstile types require the person passing through to push the barrier out of the way (such as tripod barriers), while others automatically open to allow entry.

Full height pedestrian turnstile gates:  Offering a higher level of physical security, full height turnstile gates are much more difficult to pass through without clearance. Traditional revolving doors offer a form of access control simply by limiting the number of people who can enter and exit, glass security or ‘airlock’ portals close on one side before opening on the other.

Optical pedestrian turnstiles: Capable of regulating access without any kind of physical barrier, optical turnstiles work by monitoring people who pass through with ID cards or badges using infrared light beams. If an optical turnstile detects an unauthorised entry, the system raises an alarm or signal.

Vehicle access control turnstiles:   Barriers with lifting boom arms control access for vehicles as they move in and out of car parks, toll roads and bridges. Arms can be fitted with chain or ladder-style barrier skirts that prevent pedestrians ducking under vehicle turnstiles.

Types of turnstile security integration

Biometric: Biometric turnstiles admit entry based on specific and unique traits, such as fingerprinting, iris recognition and voice control.

Barcode / magnetic stripe: With barcode or magnetic stripe readers, this type of turnstile gate requires users to present and scan an ID card or badge.

Proximity readers: Proximity readers work in a similar way to barcode and magnetic stripe readers, but are able to ‘read’ an ID card or badge once it is nearby, without the user having to insert or swipe it.   

Key pads: Key pad turnstile gates work when users enter a PIN or access code.

Where are turnstiles used?

Access control systems can be used in any location where there’s a need to regulate pedestrian or vehicle flow. Building security is just one reason to install turnstile gates; there are several other benefits and use cases for this type of access control. For example, office and commercial organisations may use turnstile gates to monitor visitor access or, if they are integrated with an automated time and attendance system, to manage employee working hours and time on-site.

Leisure facilities and entertainment venues may have a different turnstile access control remit; in most cases to regulate the amount of people who can move from one area to another at once.

For high-security premises, such as airports, integrated turnstile gates can act as an extra security measure as well as a means of passenger separation. Let turnstile access systems enable your business to take back control   

As part of a comprehensive access control system, turnstile gates offer a simple yet effective way to increase security and manage crowd flow. To find out more about our turnstile gate systems and how they can benefit your organisation, please don’t hesitate to get in touch.