Fire - detection and escape

People need to know there is a fire so that they can escape. Options for detection include:
* Smoke,
* Flame (UV)
* Heat
* Manual (e.g. break glass).

Factors that affect ease of escape include:

* Number of fire escapes (ideally always more than two independent safe routes from any location);
* Distance to exit
* Clutter on route
* Fire integrity of escape route - fire doors that close automatically
* Ability to open fire doors - must not be locked, open outwards
* Signage
* Emergency lighting
* (Safe) assembly points
* Knowledge of procedures - staff and visitors

In general, do not use lifts. Need to make provision for disabled people including physical, visual and deaf (cannot hear alarms).