> It takes an average of 20 years and $120M/mile (60M €/km) to open a new metro station.
Light rail transit or streetcars can be a lot cheaper than that, while still avoiding quite a bit of car traffic. The best system for any given atea is going to depend on density and local demand.
It can, but it won't be in Lisbon, unless we completely reform the public sector first. If that's our hope we might as well get used to the current situation.
