image1 image2 image3 image4

The community of interests "walk-through utility tunnels" (IBV) is an association of owner, operator, user and provider who maintain and operate utility tunnels * . The community IBV was founded on 1st September 2014 as a platform for exchange of ideas and information with other members.

 * synonyms are:
underground utility tunnel, collecting duct, common duct, pipe subway, utility corridor etc.