TTOW is a division of KIVI
Tunnel Engineering and Underground Works, TTOW, was founded in 1971 with the aim of uniting all engineers and budding engineers interested in underground construction and jointly achieving knowledge transfer.
International representation
TTOW also represents the ITA (International Tunnelling and Underground Space Association) in the Netherlands, providing a link to the rest of the world within the field.
Liaison with prospective tunnel engineers
The TTOW board also includes representation from student society "The Underground" to ensure excellent student liaison.