File:Fse-hand-calculations-v3.svg

Fse-hand-calculations-v3.svg (SVG file, nominally 900 × 600 pixels, file size: 7 KB)

Summary

Evacuation hand calculation: 300 people divided over four stairs; the 1.6 m stairs govern, giving 5 s + 63 s + 10 s = 78 s. Based on Van Rossum (2027), §7.5.

Original vector illustration for Hand calculations, level 2 Intermediate.

Source basis: Van Rossum (2027), §7.5 (eight steps and worked example)
Alt text: Floor plan with 300 people and four stairs of two widths, and a time bar of 5 s walking, 63 s passing the stair and 10 s walking.

Licensing

New drawing by Fire Safety Academy. © Fire Safety Academy.

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	Date/Time	Thumbnail	Dimensions	User	Comment
current	17:37, 2 November 2026		900 × 600 (7 KB)	Lisa (talk \| contribs)	Watermark: Fire Safety Academy logo icon, 70 px, 45 % opacity

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Hand calculations

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Short title	Evacuation hand calculation: 300 people divided over four stairs; the 1.6 m stairs govern, giving 5 s + 63 s + 10 s = 78 s. Based on Van Rossum (2027), §7.5.
Image title	Floor plan with 300 people and four stairs of two widths, and a time bar of 5 s walking, 63 s passing the stair and 10 s walking. Source basis: Van Rossum (2027), §7.5 (eight steps and worked example)
Width	900
Height	600