by : pgopta
# Monica Bradley, Scientific American's photo editor, and photographers Jeremy Floto and Cassandra Warner.
There are view of Subway Tunneling work on construction.
Fresh Air
The Worker needs fresh air down the tunnel, its carrying by giant air channel hanging up the tunnel ceiling.
Safety First
Every worker who gets in the tunnel is always monitored by changing their tag status into red, that previously blue. So, in the emergency situation they will always known.
Tools and Seepage
Working hard need a powerful tools. There are Seepage on the wall. Its happen all the time cause the tunnel is below the water table. Pumping is the simple things to do.
Train Track
The track showing us that they need to transport the material to/ from inside the tunneling. Just a temporary structure. The real track for subway will be installed after they complete the tunneling work.
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