Our small team of tunnel ventilation experts have extensive experience designing European tunnels to PIARC standards.


Our tunnel ventilation team can provide advice for amenity and fire emergency ventilation, including:
  • Sizing tunnel cross sections and entries,
  • Sizing and positioning ventilation systems,
  • Accommodating different locations of fires within tunnels, and
  • Accommodating and working with wind pressures and gradients,
  • Creating beneficial acoustic and energy outcomes.

We are able to simulate the optimal ventilation design during a tunnel fire by utilising a smoke exhaust model similar to the image above.

Alongside the smoke exhaust model, we can produce a temperature slice of how heat will travel within the tunnel.