shibuya station is a major commuter hub. nine rail lines pass through the station above and below ground. this area was opened in march. it's located five stories below ground. it has several exits that leads to ground level. subway riders unfamiliar with the station would have difficulty finding their way out. almost 2.5 million people pass through this station every day. this drill is aimed at finding out if people can move through designated evacuation points without incident. one of the goals of the drill was to see whether railway staff could guide passengers to temporary shelter. two years ago people rushed to train stations hoping to get home. they found that nothing was running. many wound up walking home. others spent the night inside the stations or nearby or at their offices. since then authorities have been trying to come up with solutions. they need to identify places where people can go when they get stranded. after the disaster, managers of 28 facilities near shibuya station said they would offer accommodation