With a length of 57 kilometres, the Gotthard Base Tunnel is the longest railway tunnel in the world. The new line was ready for operation at the end of 2016 - one year earlier than originally planned. CONTACT Project Office enabled a secure control of this major project: The project managers at Transtec Gotthard were able to monitor the progress of the installation of the railway technology on a daily basis, weight work packages according to the possible effects on subsequent tasks and counteract delays with foresight.