An estimated 5.5 million people ride New York 's subway system each day . New York shut down all 468 subway stations for the second time ever for Superstorm Sandy . If it were laid out in a single line , the tracks would extend from Manhattan to Detroit , Michigan . Comment:
An estimated 5.5 million people ride New York 's subway system each day . New York shut down all 468 subway stations for the second time ever for Superstorm Sandy . If it were laid out in a single line , the tracks would extend from Manhattan to Detroit , Michigan . Scientists cite rising sea levels and climate change as contributors to dangerous flooding .