Subways
The Moscow Metro is the world's largest and most heavily used metro system. It is 277.9 kilometers long with 12 lines and 171 stations. It carries about 10 million passengers every weekday with an annual rider ship of over 8 billion. With the world population between 6 and 7 billion, it would be as if every man, woman, and child in the world rode the Moscow Metro every year.
The metro is extremely efficient, with the colored radial lines extending along the populated spurs to the suburbs. Near the inner city, the brown line is a circular line that connects all of the radial lines. Most lines cross each other, so it is usually only required for people to change trains once.
Trains arrive at the stations every 90 seconds during peak times, and there is only a 10 minute wait at the most.
The subway was started in 1930 with the first line completed in 1935. The stations were decorated beautifully that are more like surface buildings than subway stations. Construction stopped during World War II, but later resumed with furor in the 1950s and 1960s. After the fall of communism, construction once again has begun, with many new routes opening as recently as 2003. The new stations carried on the spirit of the old, with the highly decorated interiors were made to match the existing stations.
Several of the metro stations lie directly under surface rail lines or other transportation hubs making it easy for commuters to switch services.
Many future lines and expansions of existing lines are planned for the next 20 years, which will keep the Moscow Metro at the top of the underground transportation list.