Does Moscow subway bombing mark the return of the black widow?

On some broken weekday, nearly 9 million individuals sit the underground from the external bounds of the Russian choice into downtown Moscow, working it the instant most heavy used underground system in the earth after Tokyo's subway.

The popular length of a travel on the Moscow underground is 13 kilometers.

But earlier riders can drive, they must first get finished the huge gangs massing at the ticket turnstiles, on the steep, hot escalators and on packed programs.

The longest escalator in the Moscow metro system is 126 meters.

The subway boasts 172 places in all, 71 of them deep underground.

During the Cold War, some sends were planned as shelters in the event of nuclear attack.

Opened in 1935, many Moscow tube posts stand out for the forensic socialist realist art featured on the station walls and purple chandeliers illuminating the long, cavernous tunnels.

Most stations feature long political programs that can accommodate up to eight rail cars, with trains running roughly every 90 seconds.

The Moscow metro is about identical to those used in all other former Soviet cities where there is a underground system, including St. Petersburg, Minsk, Kyiv, Sofia, and Warsaw.

Moscow tube system officials say more than 36,000 souls work to run and maintain the underground, the most reliable form of transport in the traffic-clogged city.

In recent years, several reconstruction projects have been completed and more are underway. Officials are also planning different denotations of existing lines as the Russian particular remains to grow.