Attacks on elderly straphangers are fueling a spike in felony assaults within the New York City subway system, NYPD Transit Chief Gulotta said Friday. As the NYPD contends with a 9% jump in felony assaults in the city transit system this year, the department's transit chief said roughly half of all attacks on the rails are targeting a few select groups. What is driving them is assaults on police officers, assaults on MTA workers, and assaults on the elderly, Gulotta said at a press briefing at the NYPD's Manhattan HQ. When you put those three together, that's almost 50% of felony assaults. That's something we're really geared up on. It's something we take very seriously. Cops have investigated 435 assaults in transit this year through the end of August, compared to the 397 reported by that time last year. Elderly people were the victims in 17% of the attacks, officials said. Cops made up another 21% of the victims. While assaults in the subways are up, random attacks are down by 8%, from 69 last year to 63 this year, police said. Unprovoked felony assaults decreased by 4%, from 71 last year to 68. Those arrested for assaults are mostly repeat offenders, cops said. The transit chief revealed the new data on attacks targeting elderly commuters just days after a 65-year-old woman, whose leg was broken in three places after a mentally ill stranger shoved her onto the tracks at a Bronx subway station in an unprovoked attack, blasted city leaders for failing to protect riders. The situation has got to stop, an outraged Lydia Zuniga told the Daily News from her hospital bed last week. The city isn't doing anything regarding crazy people. They're running the subways, and nobody's doing anything about it. Zuniga was waiting for a Manhattan-bound No. 5 train at the elevated E. 180th St. station near Morris Park Ave. in West Farms at about 1:45 p.m. on Aug. 27 when her attacker stormed up to her, she said. Other attacks targeting seniors include a 70-year-old woman who was hurled onto the tracks at the 57th St.-Seventh Ave. train station in Midtown on July 18. And on April 11, Ant #nydailynews #crimewatchnewyork