Disruptions continued throughout the day: several lines were shut down or delayed, making commuting difficult. At the Atlantic Avenue-Barclays stop in Brooklyn, several MTA employees stood at the entrances to the subway, answering concerned questions from passengers about alternative routes.
On Tuesday, Marjorie Michele, 50, a nurse technician from Ocean Hill, Brooklyn, took an Uber home from work, she said. Lines were still snapped from the attack, and it felt safer.
“It could have been me, it could have been one of my children,” said Ms. Michele. “Imagine those poor people who were shot this morning, they woke up this morning to get where they were going.”
The trauma of that day would echo far beyond the train car in which the attack took place, said Jaclyn Schildkraut, an associate professor of criminal justice at the State University of New York at Oswego who studies mass shootings.
“In a mass shooting, there is a lot of attention for the dead or injured, and rightly so,” she said. “But you had a train full of people who may not have been physically injured but who will sustain traumatic injuries, and you have an entire city that is part of a bustling metropolis that is now questioning their safety.”
Mayor Eric Adams had vowed to crack down on subway violence, and the shooting took place amid what was already an increased police presence. A few weeks after a woman was pushed to death in front of a train in mid-January and a homeless man was charged with murder, Mr. Adams plans to prevent homeless people from taking shelter on trains and platforms and police evicting people who don’t use the trains for transportation.
The shooting threatens the slow return of riders to the subway. Fiscal health has been seen by officials as tied to Manhattan’s above-ground economy, particularly its business districts. Ensuring a safe metro system is part of a strategy to attract people back to offices and tourists back to the city.