Air Velocity Check — Travel Road / Walkway
Velocity from quantity and section for a travel road / walkway, checked against its practice band (0.25–6 m/s).
Walkways tolerate wide velocity bands, but above ~6 m/s dust, grit and door-slam forces make travel unpleasant and door interlocks heavy to operate. The minimum exists for gas-layering reasons: stagnant travel roads adjacent to goafs accumulate what regulations assume moves.
Formula
Note: Mine ventilation is statutory and life-safety territory: airflow quantities, gas limits and re-entry times must be set by the registered ventilation engineer/manager under your jurisdiction's mining regulations — this calculator is a planning and training aid.
Velocity from quantity and section for a travel road / walkway, checked against its practice band (0.25–6 m/s). A free mine ventilation & air quality tool — no sign-up, no upload, instant results in your browser.
About Air Velocity Check — Travel Road / Walkway
Air Velocity Check — Travel Road / Walkway computes the governing relationship v = Q / A live as you type. Walkways tolerate wide velocity bands, but above ~6 m/s dust, grit and door-slam forces make travel unpleasant and door interlocks heavy to operate. The minimum exists for gas-layering reasons: stagnant travel roads adjacent to goafs accumulate what regulations assume moves. Defaults are pre-filled with realistic values for this exact scenario, and the worked example substitutes your numbers step by step so the math is never a black box.
How to use Air Velocity Check — Travel Road / Walkway
- 1Enter your values — Airflow quantity, Airway cross-section, Band minimum, Band maximum (sensible defaults are pre-filled).
- 2Read the live results: Air velocity.
- 3Check the "with your numbers" line to see v = Q / A substituted step by step.
- 4Adjust inputs until the scenario matches yours, then copy or share the result.
Why use Air Velocity Check — Travel Road / Walkway?
- ✓Instant, free and private — every calculation runs client-side in your browser; nothing is uploaded
- ✓Built on the stated formula v = Q / A with authoritative sources cited on the page (McPherson, M.J., Subsurface Ventilation and Environmental Engineering; MSHA 30 CFR Parts 57/75 — Ventilation standards)
- ✓Walkways tolerate wide velocity bands, but above ~6 m/s dust, grit and door-slam forces make travel unpleasant and door interlocks heavy to operate.
- ✓SI ⇄ Imperial toggle converts your inputs in place, so you can work in the units your drawings use
Frequently asked questions
What formula does the air velocity check — travel road / walkway use?+
It evaluates v = Q / A, exactly as published. Sources: McPherson, M.J., Subsurface Ventilation and Environmental Engineering; MSHA 30 CFR Parts 57/75 — Ventilation standards. The substituted worked example on the page lets you verify every step against the textbook.
How should I read the result — and how far can I trust it?+
Walkways tolerate wide velocity bands, but above ~6 m/s dust, grit and door-slam forces make travel unpleasant and door interlocks heavy to operate. Mine ventilation is statutory and life-safety territory: airflow quantities, gas limits and re-entry times must be set by the registered ventilation engineer/manager under your jurisdiction's mining regulations — this calculator is a planning and training aid.
When is this calculator the right tool for the job?+
Velocity from quantity and section for a travel road / walkway, checked against its practice band (0.25–6 m/s). A free mine ventilation & air quality tool. The minimum exists for gas-layering reasons: stagnant travel roads adjacent to goafs accumulate what regulations assume moves. For neighbouring scenarios, the related tools below cover the same engine with different presets.
Does it support both metric and imperial units?+
Yes — the SI ⇄ Imperial toggle converts the values already in the fields, preserving the physical quantity, so you can flip mid-calculation without re-entering anything.
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