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Milan's new Blue Line connects Milan from East to West in just 30 minutes and allows you to get from the San Babila metro station in the city center to Linate airport in 12 minutes. The Metro 4 section is 15 kilometers long, passes through 21 stations and includes the passage of driverless trains. In this video we see the technical challenges that were faced during the construction, such as the temporary removal of the most at-risk structures. Furthermore, thanks to the artificial freezing method of the ground, through the injection of liquid nitrogen, it was possible to allow the TBMs to pass in complete safety. During the works, attention to the environment was not lacking: the use of underground conveyor belts allowed a reduction in the number of trucks used to move materials and the planting of approximately 1900 new trees is planned along the entire metro line. 00:00 The construction of Milan's Metro 4 02:00 How often do the M4 trains pass? 02:34 How was the work done on the Milan Blue Line tunnel? 04:05 How do you preserve the surface when digging underground? 05:24 What is the liquid nitrogen excavation technique used in excavations and how does it work 06:45 Attention to the environment during the works on the M4 subway in Milan Production company: Ciaopeople Executive creative direction: Geopop Creative direction and video face: Andrea Moccia Authors: Andrea Moccia, Matteo De Micco, Veronica Miglio Video supervisor, video editor: Gabriele Lauria Advertising Director: Giorgio Mennella Head of branded pm & production: Chiara Iovine Branded project manager: Noemi Colicchio Producer: Nelly Tarasco Head of creativity: Alessia Bonito Oliva Copywriter & creativity: Giulia Tofi Head of sales & talent management: Rosa Iuliano Senior sales branded content: Valentina Giovannini Sales branded content: Martina Santoro Social team: Sara Fusco, Anna Chiara Andolfi SEO team: Marzia Emilia Di Matteo, Ilaria Orzo OTHER RECOMMENDED VIDEOS: • How to excavate a subway station... • The machines that dug the tunnels... #metropolitana #milan #geopop