In terms of both construction and operation, tunnels are the most energy demanding of road infrastructure assets. The construction of a road tunnel is energy intensive due to the volume of excavation required and the energy embodied in the materials that form the structure of the tunnel. In operating a tunnel, energy is consumed to provide adequate lighting, ventilation for drivers and to maintain drainage systems. A significant amount of equipment is also installed to deal with emergency situations. With a tunnel’s operational lifetime typically in excess of 100 years, energy usage through operation can soon outweigh that due to construction and therefore the former provided the focus for this project.


TRL Limited, UK (Co-ordinator) TRL
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AIT Austrian Institute of Technology 
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Designs for Lighting
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The project commenced in January 2015 and will conclude in June 2016.


Published Outputs:

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