Rational Method — Peak Flow
Ref: MSMA 2nd Edition (2012), Chapter 2, Eq. 2.3
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Q = C × i × A / 360
Ref: MSMA 2nd Edition (2012), Chapter 2, Eq. 2.3
MSMA Table 2.5 — e.g. 0.80 terrace house (minor), 0.90 (major)
From IDF curve for selected ARI and Tc
Total contributing area — Rational Method valid only for ≤ 80 ha (MSMA §2.3.1.2)
Peak Flow
—m³/s
Engineering aid only — final design must be endorsed by a registered PE under BEM.
Disclaimer: This output is an engineering calculation aid only and does not constitute a final or endorsed design. All designs submitted to Malaysian authorities must be endorsed by a registered Professional Engineer (PE) under the Board of Engineers Malaysia (BEM) in accordance with the Registration of Engineers Act 1967.