New York City is trying to deter dangerous “subway surfing” through education programs, but some transportation advocates and lawmakers say it's not enough. They say making trains harder to climb and train surfers more easy to detect might need to be part of the solution. One subway driver says locking the doors at the ends of train cars might help prevent people from climbing onto the roof. Six people died surfing New York City subway trains last year, which was one more than in 2023. The NYPD reported that arrests of alleged subway surfers rose to 229 last year, up from 135 the year before. The youngest was 9 years old.