Transit advocates are calling on the city to install more cameras in the train cars.

Members of Passengers United say the security measure has already been adopted by many countries in Asia, and would be a highly effective way to deter gun violence and prevent incidents like Tuesday’s tragedy from happening again.

According to police sources, the MTA surveillance camera at the station was not working properly at the time of the shooting to capture the shooter escaping the scene.

"The New York delegation needs to make this happen, because right now transit workers are being assaulted, and passengers are getting assaulted," says Charlton Dsouza, president of Passengers United. "So, It's a very dangerous and toxic situation. So, we need cameras inside every subway car that’s new, they should be there."

Passengers United hopes to speak with MTA officials at the board meeting next month to hopefully bring the measures to reality.