https://en.wikipedia.org/wiki/Stockholm
https://en.wikipedia.org/wiki/Stockholm#Public_transportation
https://en.wikipedia.org/wiki/Stockholm_Metro Unfortunatly, provincial Vancouver isn't allowed to have proper long big city type trains like Stockholm.
https://en.wikipedia.org/wiki/Stockholm_Metro#Rolling_stock
https://en.wikipedia.org/wiki/SL_C30 , https://en.wikipedia.org/wiki/SL_C20