AM Peak: 111 Rider Surveys (September 2017 - March 2018)
- Broadway Station: Platform and onboard crowding during service delays.
- Queensboro Plaza: Frequent onboard crowding.
- Lex/59 St Station: Significant stairwell crowding.
- Lex/59 St to 14 St/Union Square: Slow track speeds.
- Queensboro Plaza, Grand Central/42 St, and 14 St/Union Square: Extended dwell times.