User Manual

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3.2.6 Lecture theaters
Lecture theaters have become an indispensable feature of university life. The size of these may vary widely, with
some larger facilities offering a seating capacity of over 300. In many cases a number of lecture theaters may be
concentrated in a teaching block, with a common concourse area. Many lecture theaters have tiered seating, with
an electrical infrastructure and air-distribution systems concealed in the underfloor void. Such areas should be
supervised by an appropriately installed ASD-system, which would also be the recommended solution for
suspended ceilings. The auditorium itself, however, can be adequately supervised by correctly positioned point-
type smoke detectors.
During the planning and construction of such facilities, measures must be taken to address the consequences of
emergency events such as fire. It is essential that an adequate number of exit routes are provided, which are
correctly dimensioned for the numbers of people expected.
Smoke is one of the main hazards, as this can easily lead to panic reactions when people feel trapped and unable
to get out of the building quickly enough. Keeping the exit routes smoke-free is therefore a major priority and
attention must be paid to the smoke extraction infrastructure.
Appropriate exit route signage and way guidance systems are also essential pre-requisites for ensuring an efficient
evacuation. A voice alarm system may also be appropriate in some of the larger facilities, however regular staff
training on the prescribed evacuation procedures is an absolute necessity.