Aroma planned and implemented the tunnel festival on 15 April 2023, which attracted over 10,000 visitors. The ‘Tunnel Durchblick’ visual concept included the logo, signage and communication measures. Films and animations in the tunnel created a magical atmosphere, while various stations explained the construction phases and offered a varied programme. Visitors were able to cross the tunnel by bike or on a surprise ride and discover numerous attractions. An impressive demonstration by the fire brigade delighted young and old alike and made the event even more attractive.

A wide range of information and refreshments awaited guests at the two portal sites in Regensdorf and Weiningen. Visitors were able to find out about the project and its challenges and learn how the 3rd tube will help to relieve traffic congestion. Interactive music and live performances rounded off the festive programme and provided entertainment and an exuberant atmosphere.