Transportation_Is Seoul subway best in the world?

In my opinion, this news is about to proud of their transportation because no lacking of complaining about dirty condition, and overcrowding .

The Seoul Metropolitan Subway proud itself on being one of the best transport systems in the world. There is little doubt that the Seoul subway is a easy way of traveling around the city, but there is also no lack of complaints about the crowding, and dirty.

The Seoul subway system transported 2.048 billion passengers in 2009 over its nine lines, on hundreds of trains.

Since there are separate charge of operations, the environment of the subway stations and trains are different. The government of Seoul Metro runs subway lines 1 to 4, while Seoul Metropolitan fast Transport manages lines 5 to 8. The newest Line 9 is run by the private company Seoul Metro Line 9 Corp.