Is every subway project going to be failure? Here's example from Helsinki & Espoo, Finland. https://en.wikipedia.org/wiki/L%C3%A4nsimetro#Cost Constant cost & schedule slips. Nobody knows when it will be actually ready. Here's the official news feed: http://www.lansimetro.fi/en/home/news.html Yet that's still 13 new stations, 21 kilometers for €1.2 billion (estimated).