Security Turnstiles

Physical security describes measures that prevent or discourage someone access to places or information. It can be as simple as a locked door or as complicated as a military installation.

In the area of security there are three main elements to physical security, barriers, alarms and security response.

Barriers

The barriers are intended to slow the threats, but will not be sufficient to prevent a serious threat. They are autonomous and generally unattended items such as locked doors, barbed wire fences and windows unbreakable.

A little more complex barriers may include:

• Access cards and mixes with the doors


• Doors must be drawn to enter or exit an area


• Revolving doors or turnstiles that allow a person to both advance


• Vehicle barriers controlled by access cards

Having a double set of locked doors is very effective. The first opening on a closed space and the second which may not open until the first is closed. This is a very good barrier for at least two reasons. Any person entering an area known as the double door exit through the doors will be very difficult. The second of the double doors is often controlled by an employee who may decide to open the door or not.

These areas are often double door equipped with video surveillance and alarms.

Alarms

The alarms are both alert response teams and security unbalance the attacker. loud alarms, strobe lights or light alarms are common.

More complex and interactive alarms include:

• camera CCTV with motion sensors


• Roving security patrols


• Watchdogs


• Birds

Although it may seem unusual, the peacock and geese are used in security, because their distinctive cries can act as a warning when people approach, but to the common person, they seem harmless, even attractive.

Security Response

the response of security is used to repel the attackers or take once the event has already occurred. the security response is generally left to the police, armed private security guards are used, if necessary.

Response teams of railway safety in the real world to become familiar with the sights and sounds of active alarms and remove the confusion caused by the alarm. An attacker standard will not have this training and react poorly to a changing environment.

If the response team of security is well equipped with night vision equipment, projectors can be doubly effective. First to support security response teams to identify exactly where the intruder and then, when the team is approaching the area all the lights are out giving intruders night blindness.

Private security response teams are typically based on site or near the site and work closely with local police

Element 3 Combinations

Each of the three elements, barriers, alarms and security response can be used to increase another element. For example:

• A fence originally designed to be an obstacle may be a warning signal by attaching motion sensors


• Double fenced areas with guard dogs


• Installation of signs that say there is an alarm that can alarm an obstacle


• A response team of security that is visible on the site acts as a barrier and as a warning

The physical security measures to prevent or deter a person access to a place where information can never be 100% effective. A locked door to keep a common criminal from entering a building in the night, but.