Vinci's 5 methods and innovative tools employed at Grand Paris Express Project.

1 - BIM software to optimise projects
2 - A high-performance hydrofraise
3 - A new shaft sinking technique
4 - More precise control of tunnel boring machines
5 - Efficient communication systems in difficult environments
6 - Low-carbon concretes

Details: https://www.vinci.com/vinci.nsf/en/item/six-methods-innovative-tools.htm