MTA Tests Lasers, Thermal Cameras to Stop Subway Deaths

Can high tech gizmos like lasers, motion sensors, thermal cameras and smart video software prevent people from dying on the subway tracks?
The New York City's Metropolitan Transportation Authority (MTA) wants to find out. The authority is working on a pilot program to evaluate four different systems to detect when somebody falls on the tracks and stop trains from hitting the person.

The MTA will install the systems in a subway station to test if they're viable and consider whether to install them throughout the city in hopes of stopping an increasing number of injuries and deaths on the tracks, as first reported by The New York Daily News, and confirmed to Mashable by the MTA.
In 2013, 52 people have died on the tracks of the New York City subway system, and 144 more have been hit, according to the MTA.
The MTA will experiment with closed-circuit television cameras and smart video software that can detect when large objects move from the platform to the tracks; a web of lasers that triggers an alarm if somebody breaks it (think of movie-like alarm systems); radio frequencies transmitted below the platform edge; and thermal cameras pointed at the tracks that can distinguish the heat of a person.
The systems are designed so that when the alarms are triggered, an incoming subway train can be alerted and slow down before the conductor can see the person on the tracks.
An MTA spokesperson refused to provide more details on the program, only saying this will be a pilot and the MTA will put it in place in the next "several weeks."
It's unclear if a system like this could be implemented even if the pilot program is successful, since the MTA is $250 billion in debt. The MTA spokesperson declined to offer an estimate of how much a program like this one could cost if implemented city wide.