France is spending $45 billion on 120 miles of new subways designed to better connect Paris with its suburbs. Known as the Grand Paris Express, the project would add four new lines to the Paris subway system.
Map of planned new subway lines by Hektor.
At $380 million per mile, the cost sounds cheap by American standards. Yet it has already suffered huge cost overruns, as it was projected to cost just $27 billion as little as four years ago. Continue reading
