宋锐葭

To really know what drives a big city work, you have to peel back its skin, and expose in secret  life force, a system of incredible complexity and technology, the millions depend on but few understand. A fantastic voyage begins now, a journey deep inside the world’s mega cities.
They call it the “Big Apple”, the largest metropolis in America. Eight million people scattered across five barrel(?), each a city in itself. The core of the “Big Apple”, the bustling barrel of Manhattan, like no place on the earth, New York is famed for its pace. Yet life here would slow to a crawl without one vital piece of infrastructure, perhaps the most famous transportation system in the world, the New York subway. It’s the engine drives this mega city. 75% of New Yorkers have no car. They don’t need one. New York has the best transit system in America. Yet the subway is something under siege, daily it faces of triple threats  from man, from nature and from time. ******* Two thirds of the subway runs under ground, under roads, under rivers, under skyscrapers. The system truly carries the weight of the city on its shoulders. Billions of tons of concrete and steel ask for to nurse or burry down, millions of liters of water threatening to flood in, a hundred-year old network struggling to keep up, and a most ominous number of all, 911. In these dark shadows, the specter of terrorism is no illusion. It’s a nightmare that New York survived, and struggles daily to never relieve.