A maniac allegedly pushed a woman onto the subway tracks and punched another lady in the face in Brooklyn Saturday — and was later arrested at a nearby shelter, police and sources said.

A 51-year-old was shoved and a 43-year-old was hit on the R subway line at 53rd Street and Fourth Avenue in Sunset Park around 8:45 a.m., according to cops.

The woman pushed to the tracks suffered three broken ribs and the other sustained a busted lip, police sources said.

Curtis Signal was busted at the shelter and charged with reckless endangerment, assault, and harassment, police said.

“The guy was sitting on the platform and they were standing,” Vietnam veteran Al Rivera told The Post. “All of a sudden he pushed her on the tracks and then he turned around and pounced on the other lady. He was hitting her, punching her in the face.” 

A man and a woman told the lady who was on the tracks to put up her hands and pulled her to the platform, the sources said.

“I can only imagine how petrified they were,” said Rivera, who got the blow-by-blow from a friend of one of the victims.

Rivera worried the person who assaulted the women will be released to strike again.

“He did wrong to those people and he is not going to stop until someone sends him to the cemetery. He’s not going to stay in jail. It’s a rotating door.” 

Signal, 25, is a repeat offender in transit and is on probation until June 2027, according to police sources.

He allegedly punched a 67-year-old woman as she waited for an F train at 169th Street on Sept. 3, 2023 in Jamaica, Queens, the sources said.

Signal was acting irate and screaming, prompting the woman to try to hide behind a pillar — but he allegedly struck her in the face multiple times, the sources said.

She fell to the platform floor, but was able to get up and ran to the subway booth for help. Signal allegedly fled the station and wasn’t charged until months later, in May 2024, when cops busted him for fare evasion and connected him to the earlier assault, sources said.

“He did it again?” the 2023 assault victim asked The Post when reached at home. “Where?”

She has an order of protection against Signal, she said.  

“The experience was so traumatic I can’t talk about it,” she said.

“Why was he free?”

Less than a week after he allegedly assaulted her at the F train, Signal was arrested for allegedly punching a cop, sources said.

The Sept. 7, 2023 assault at the Grand Concourse/Tremont Avenue station in the Bronx broke the officer’s nose, sources added.

He was charged with assault on a police officer, resisting arrest, disorderly conduct and obstruction of governmental administration, the sources said.

He was at a doctor’s office on Jamaica Avenue in Queens on Dec. 1, 2022, when he allegedly beat up a 31-year-old woman, striking her in the face and mouth with a closed fist and banging her head against the floor, the sources said. He was charged with assault, criminal misconduct and harassment, the sources said.

A year before that, on May 17, 2022, he allegedly struck his 13-year-old sister and left her with a black eye at her Queens home. He was charged with assault and acting in a manner injurious to a child, the sources said.

Yolene Martinez, a 24-year-old office worker in Manhattan, has to take the train everyday to get to work and is afraid, she said. 

“Every time I hear something like this, I get more fearful,” she said. “I can’t drive into the City so I rely on the train.

“It’s happening too often — someone gets pushed on the tracts, someone gets slashed, someone gets shot,” she said. “When will it end?”

Ismail Cruz, 78, was angry about Saturday’s attack.

“They didn’t do anything to you so why did you push them?” he asked. “Then you put them in jail and two days later they are back on the street.”  

“He can’t be on the street,” Cruz said. “Lock him up!”

The attacks come as major crime in the city’s transit system has increased 17% so far this year, compared with the same period last year, according to NYPD data.

Assaults have increased 9%, from 65 at the same point last year to 71 so far in 2026, the data show.

Robberies have soared so far this year, jumping 58% from 38 over the same timeframe in 2025 to 60, according to the data.

The first subway murder of the year happened Tuesday when a man was shot to death inside a Bronx subway station, cops said. 

Crime overall is down 8% citywide so far this year versus the same span in 2025, NYPD data show.

Additional reporting by Marie Pohl