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The number of entrances and exits should be kept to a minimum. It is easy to let this get out of hand during planning, particularly where the building use is seen as flexible and allowance is made for free access to outdoor spaces. However it must be realized that practical security that can be achieved reduces as the number of doors increases. Entrances and exits should be placed where they do not reduce security. Direct access to car parks should be avoided wherever possible so that pilferage is reduced. For the same reason back doors should be closed when not in use. One of the most difficult problems to solve is providing security while maintaining fire safety. There is an essential conflict between the requirements from the perspective view point which requires a number of exits (which are freely usable) at any time and those from the security perspective, which demands effective control. The escape requirements are statutory, so they must be given adequate weightage. The abuse of fire escapes can be minimized by good building planning. Such exits should be located so that it is within constant view of the building occupants. The fire escape doors which lead out from the building must have Intruder Alarmto warn when the door is opened. CCTV can also be used for surveillance of such doors. |
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