About 135 riders get hit by subway cars every year. Many of them die, some of them spectacularly, like in December, when Sunando Sen and Ki Suk Han were pushed to to their deaths.
Subway platform doors, like the kind on the Air Train, are the only known way to prevent deaths on the tracks. But in light of the many challenges to installing them in New York City's subway systems, some people are asking, why not subway track sensors instead?
"To me it’s an example of something that’s worth thinking about," said Gene Russianoff, the head of NYPIRG's Straphangers Campaign.(1)