DSI ES8900, Installation And Operation Manual

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DESIGNED SECURITY INC
800-272-3555 www.dsigo.com
1402 Hawthorne Street Bastrop, Texas 78602 Fax 512 321 9181 Email: dsi@dsigo.com
INS-8900-151110
OPTICAL TURNSTILE ERGONOMICS
Prior to laying out the lanes, some information should be understood, regarding efficient placement of the bollards, traffic
flow and minimizing nuisance-alarms, in order to make your installation effective at providing security with the least amount
of intrusion into the user’s daily routine.
This is what we consider the psychology of lane placement, and from our experience is worthy of consideration prior to
finalizing your installation parameters.
The OT provides a physical and psychological barrier to the user. People will behave differently, and be more aware of
entering secure areas when they feel they are being guided and/or monitored into the secure zone. Through careful
placement, the OT is very effective at promoting positive traffic flow through the area of the security threshold.
DSI recommends placing the OT in areas that encourage users to “move through” the area rather than in a place where
people may congregate.
If an environment exists that encourages users to congregate due to lane placement, people may tend to stop in the lanes,
lean on the bollards or they may simply encroach into one of the lanes IR Beams. These behaviors can lead to nuisance
alarms, disruption of pedestrian traffic flow, and possible optical misalignment or other damage to the bollard. With this in
mind, we’ll look at some possible installation scenarios to better understand how best to place the lanes to maximize utility
and minimize trouble calls.
Pull Doors
It is a good idea not to place the bollards immediately before a pull door. The action of pulling the door open may cause the
user to back into the lane. This could generate a nuisance alarm.
Even if the bollards are placed further back from the door, the scenario of two or more users passing through the lane, with
the first user opening a pull door, may cause a following user to back into the lane.
Allow adequate space between the turnstile and the pull door for users to easily open the door without interrupting the traffic
flow through the lane behind them.
Queuing Areas
It is recommended that the OT lane not be placed near any type of queue. After passing through the lane, the user should
be encouraged to move out of the area by either the architecture or layout arrangement of the Optical Turnstile lanes.
Promoting positive traffic flow through the lanes and across the security threshold should be kept in mind during the planning
stage.
Elevator Lobbies
An elevator lobby has both positive and negative attributes for a turnstile application. If the bollards are placed in such a way
that a user is facing the bank of elevators, this will encourage a moderate pace through the turnstile.
However, should the elevator’s doors be closed, then a queue may be generated beyond the turnstiles. This could create
nuisance alarms similar to those mentioned previously regarding the “Pull Door,” due to the congregation of users blocking
the lane, leaning on the bollards, or encroaching into the I.R. Sensor’s light path.
Placing the turnstiles before each elevator could be beneficial from a security standpoint, and creates the possibility of
having each user card-in before entering the elevator which may in some applications significantly slow down the traffic flow
into the elevator itself.