Work has begun on Dubai Metro’s $5 billion Blue Line project, starting with the construction of a 74-metre-high Emaar Properties station in Dubai Creek Harbour, set to become the highest metro station in the world. The Blue Line will add 30km to the Dubai Metro network and is set to include 14 stations, to be constructed at a cost of Dh18 billion ($4.9 billion). Once completed, it will expand the Dubai Metro to 131km and 78 stations, connecting key areas like Mirdif, Dubai Creek Harbour and Sili