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It looks like there are 66 fans installed with venting at the tunnel ends. https://www.novenco-building.com/media/1166/king-willem-alexander-tunnel-a2-maastrich
by Merrill 7y ago
It looks like there are 66 fans installed with venting at the tunnel ends. https://www.novenco-building.com/media/1166/king-willem-alexander-tunnel-a2-maastricht-mu15496-0317-gb.pdf https://www.novenco-building.com/media/1166/king-willem-alex...