The platforms are located in an odd space where the subway moves from under Park Avenue to Lexington Ave. There is a fly-under for the 42nd St. shuttle access and the 7 line below that. Widening these platforms would be well nigh impossible, so every little bit helps. Unfortunately, the long awaited Second Avenue Subway won't help here. Passengers for the Bronx will still have to cram onto the 4, 5 and 6, while passengers for uptown and Harlem would have to take the shuttle to the Q instead of direct service via Lexington. What happens when ESA opens and diverts passengers from the West Side onto the 4, 5. 6?
The next stop is Washington. Change for Forest Hills Trains on the Winter St. Platform, and Everett Trains on the Summer St. Platform. This is an Ashmont train, change for Braintree at Columbia.