The Metropolitan Transportation Authority is reportedly looking for companies interested in installing sliding doors on subway platforms that would open only when trains are in the station.
The doors are already in use at Air Train stations in Queens and Newark.
The barriers would prevent riders from jumping or falling on to the tracks.
The doors would also prevent trash and debris from collecting on tracks, reducing track fires and their subsequent delays.
One idea would allow the company that builds the doors to share revenue from advertising placed on them.
Proposals are due back to the MTA in March.