How Is Ventilation Designed for Airport Parking Structures?

I zone garage ventilation horizontally by level and vertically by area, because pollution is never uniform. CO sensors go on each level in the spots that trap exhaust — near entry ramps, around corners, by the elevator lobbies where cars idle. The controls stage exhaust fans and modulate supply to hold CO below the design threshold, with time-of-day schedules as a backup layer tied to the flight schedule. Make-up air is the part most designs underdo: without designed supply paths, exhaust fans starve, short-circuit, and leave dead zones. I provide low-level supply or transfer openings so each level gets a true sweep, and I verify the air paths with the architectural openings — a ventilation design that ignores where air can actually enter is fiction.

Garages near the airfield live in the airport's operating environment, not just the city's. I coordinate with the airfield planners on jet blast contours and design deflectors, reinforced openings, and secured loose elements where the analysis requires them. Aircraft noise shapes the design of any occupied garage spaces — parking offices, cashier booths, and shuttle waiting areas get acoustic ratings and mechanical systems quiet enough for their use. Height restrictions from airspace surfaces can cap the garage, which pushes ventilation equipment into tighter spaces and makes early coordination with structural essential. The garage that works is the one designed as part of the airfield, not next to it.

An airport parking structure ventilation design is ready when it clears this checklist. Garages fail on air quality, energy waste, and airfield conflicts — these items cover all three. • Exhaust rates verified against peak flight-bank vehicle surges, not just code minimums • CO sensor network with zoned, variable-speed demand control on every level • Designed make-up air paths delivering a true sweep with no dead zones • Jet blast deflectors and detailing where airfield geometry creates exposure • Pressurized or ventilated stairs, elevator cooling, and emergency egress lighting