CIBSE Guide E | Ch. 7 | Eq. 7.8

Exit capacity of a stairway

Maximum number of people able to enter the stair within a specified period without suffering extreme discomfort

Reference

CIBSE (Chartered Institution of Building Services Engineers), 2019. CIBSE Guide E: Fire Safety Engineering. 4th edn. London: CIBSE.

Equations

N_{in_(max)} = 1.333 \cdot W_s \cdot t + 3.5 \cdot A \cdot (S - 1)