Smoke alarm equipment layout floor plan

"A smoke detector is a device that detects smoke, typically as an indicator of fire. Commercial, industrial, and mass residential devices issue a signal to a fire alarm system, while household detectors, known as smoke alarms, generally issue a local audible or visual alarm from the detector itself.
Most smoke detectors work either by optical detection (photoelectric) or by physical process (ionization), while others use both detection methods to increase sensitivity to smoke." [Smoke detector. Wikipedia]
This smoke alarm equipment layout floor plan example was created using the ConceptDraw PRO diagramming and vector drawing software extended with the Security and Access Plans solution from the Building Plans area of ConceptDraw Solution Park.

This is lecture hall seating plan sample.
It was created on the base of the Lecture Theatre floorplan from the website of the Kent Science Park, UK.
[kentsciencepark.co.uk/ MeetingRooms/ MeetingRooms.aspx]
"A lecture hall (or lecture theatre) is a large room used for instruction, typically at a college or university. Unlike a traditional classroom with a capacity from one to four dozen, the capacity of lecture halls is typically measured in the hundreds. Lecture halls almost always have a pitched floor, so that those in the rear are sat higher than those at the front, allowing them to see the lecturer. The importance of lecture halls is so significant that some schools of architecture have offered courses exclusively centered on their design." [Lecture hall. Wikipedia]
The floor plan example "Lecture theatre" was created using the ConceptDraw PRO diagramming and vector drawing software extended with the School and Training Plans solution from the Building Plans area of ConceptDraw Solution Park.