Entry from US English dictionary
An access control system without barriers in which those attempting to enter are evaluated by closed-circuit television or other visual means.
- At the Blue Cross-Blue Shield headquarters, optical turnstiles form the backbone of an access control system.
- For example, optical turnstiles are now being designed into many high-rise office buildings as well as virtually every government building and high-security facility.
- One solution that has drawn a good deal of interest is optical turnstiles, which can handle thousands of people in the morning rush effectively and efficiently, says Terry Gillick, vice president of Syska Hennessy Group.
For editors and proofreaders
Syllabification: op·ti·cal turn·stile
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