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MAC Portal, Modular access control (MAC) Portal, turnstiles in a container
For many customers of Modular Security Systems Inc. the benefits of having a Modular Access Control (MAC) Portal on site are obvious. Having an instantly deployable, fenceline-ready guard shack with turnstiles and access control has already proven to bring savings in both time and money. A common question many customers ask is: How Many Turnstiles Do I need in my MAC Portal? To answer that very question MSSI has published a new "Turnstile Flow Calculator" here at

MAC Portal, Turnstile flow calculator, turnstile calculator

Pictured here is an example to illustrate the Turnstile Flow Calculators functionality. In this example a customer would estimate 1000 employees (per shift change) and a desired shift change timeline of 30 minutes. Given those parameters the turnstile flow calculator shows a need for 5 turnstile lanes in order to process that number of employees in that length of time. With an average throughput of 34 employees per minute a MAC-5 (guard shack with five turnstiles) would be required.

turnstile flow calculator, flow calculator, mac portal flow calculator

Pictured here is an illustration where the same amount of time is needed to process 500 employees. Given this number of employees and the 30 minute shift change the turnstile flow calculator estimates a need for 3 turnstile lanes with an average throughput of 17 employees per minute. Here a MAC-3 (guard shack with three turnstiles) is all that is needed.

Click any of the images above to go to the Turnstile Flow Calculator to estimate the number of turnstiles you need in your MAC Portal.

For more information on the Modular Access Control (MAC) Portal feel free to contact us and check back as our Blog is regularly updated.