Arup’s innovative ventilation work on first intercontinental road tunnel recognised at NCE Tunnelling Awards

Sarah Wright - Communications Coordinator Sarah Wright UKIMEA Press Office,London
12 December 2018

Arup’s ventilation system optimisation work on the Eurasia Tunnel in Istanbul was awarded the ‘Innovation in Maintenance and Renewal Award’ at New Civil Engineer’s Tunnelling Festival Awards 2018.

The awards celebrate global expertise and project excellence in tunnelling and the judges praised Arup’s Eurasia Tunnel ventilation team for “leveraging available data to significantly reduce operating costs and improve air quality for road users.”

The optimised ventilation operation schedule put in place provides energy savings of up to 80% compared to the original schedule and guarantees the system under any traffic conditions. In order to enable this, the project team used available data to develop an improved ventilation monitoring system for the road tunnel, based on an enhanced understanding of the true in-tunnel conditions.

The judges commented that the team “demonstrated an innovative approach to driving better performance from existing physical infrastructure and the financial and customer benefits were significant”.

Eurasia tunnel Ventilation system Eurasia tunnel Ventilation system
Eurasia tunnel ventilation system © TC Ulaştırma ve Altyapı Bakanlığı

In tunnels, the initial ventilation operation schedule as set by the designers is hardly ever changed. However, in this project, the existing monitoring system was improved, leading to the design of a unique, flexible ventilation operation...
The approach taken is repeatable and has the potential to drive considerable improvements in performance from similar assets worldwide. We are very proud to have been associated with the delivery of this major road tunnel project and to have our work recognised with this award. ” ertan hataysal Ertan Hataysal Senior Engineer, Arup

The 5 km long Eurasia Tunnel is the first intercontinental road tunnel in the world and provides an improved connection between the Asian and the European sides of Istanbul via a double-deck highway tunnel under the seabed. Arup provided a range of advisory and technical services on the project, including lenders' technical advisory services from the design phase to construction monitoring, including traffic audit services.