In 2012 , Switzerland ’ s largest city ensured it was future-proofed with its ‘ Strategien Zurich 2025 ’ framework . Additional lines are being added to its Züricher Verkehrsbetriebe network , more train and tram lines are to come , whereas a switch from diesel buses to electrified trolleybuses will help safeguard the environment . Most excitingly , an underground logistics network – Cargo Sous Terrain – will transport goods via tunnels , using automation .

63