[Image: Via Tunnel Business Magazine].
The abandoned Runehamar road tunnel on the southwest coast of Norway has been redesigned and given new life as a site for the experimental burning of trucks, cargo, and other vehicular structures in order to learn how subterranean road fires can best be extinguished.
It’s a kind of Nordic funeral pyre built not for the bodies of kings but for the products of the automotive industry, an underground bonfire of simulated car wrecks that seems more like something you’d see in the fiction of J.G. Ballard.
The overall structure has been modified to serve as a closely-controlled thermal environment—more a furnace than a piece of transportation infrastructure—complete with an array of instruments and sensors, and a system of sprinklers and ventilation fans that let observers try out novel methods of fire suppression.
In a sense, this is what might happen if someone like architect Philippe Rahm was given a limited budget and hired to design experimental subterranean road infrastructure, with his work’s focus on the thermal behavior of spaces and other non-visual dimensions of the built environment.
The Norwegian Public Roads Association explains why all this is necessary:
There is a need for more detailed knowledge on how and why various semi-trailer cargos burn so strongly and why they spread so quickly. The high heat exposure from the semi-trailers to the tunnel linings also needs more focus. The only reasonable way of finding an answer to these questions is to carry out systematic large scale experiments that can provide a better basis for the design of technical systems in road tunnels.
There’s more to write about the tunnel, I’m sure, and there is a bit more detail in the original post on Gizmodo—including, for those of you curious, this PDF that comes complete with structural and thermal diagrams of the burning apparatus.
But I suppose I’m more interested in the sheer strangeness of an old road tunnel being transformed into a venue for controlled thermal events. It is ritualistic, repetitive, and pyromaniacal, as if vitamin-D-deprived engineers in lab coats have been endlessly sacrificing sacred cargo for some infernal mountain, an altar for automotive transubstantiation, where unknown driving objects are reduced to ash and studied, again and again, filmed and re-watched—until the next fire, when the sprinklers fill up again and the vents, like a buried engine, begin to roar.