South Korea has many cities with nicely built metro systems. They are big and are also a reason for less traffic in the countries bigger cities. Incheon city is no exception either. The city got over 2.5 million people, which means that its population is half of the Norwegian population. However, it is a neighbor city to Seoul but that makes it just even more interesting.
Extension to Incheon from Songdo
Suin Line was extended towards the west from Songdo to Incheon on 27th of February Urbanrail.net reports.