The Avenue M Station has two quite narrow side platforms for a four-tracked Brighton Line express station. These both have standard cream-painted windscreens along their entire lengths. There is a canopy only towards the center of the station's platforms. The station's single exit is beneath the tracks at street level between the platforms, two staircases lead down from each platform to a small underpass area. From the Coney Island-bound platform a High Exit Turnstile allows passengers to exit directly and not enter the station house. This along with the doors out from the small station house built directly underneath the embankment lead out to the southern sidewalk of the shopping street that is Avenue M and crosses beneath the subway line. The station house has the station's small bank of turnstiles and token booth.
The station was renovated from 2009 through 2011, with first Coney Island-bound trains skipping the station at all times running via the express track, followed by Manhattan-bound trains. Express service on the Brighton Line was discontinued so B trains were temporarily also stopping at the station in the non-skipped direction).
The renovations replaced the cream colored windscreens with modern Green and cream colored ones, portions of the platforms that look out to Avenue M have mesh instead of the windscreen in places allowing more natural light onto the platforms.
The station house was completely renovated with new white tiles in the same style of Avenue J, a new exit was built from the northern sidewalk of Avenue M with a staircase leading up from the darkness underneath the railroad bridge above to a switchback before arriving on the Manhattan-bound platform only at a bank of on platform turnstiles. There was space to build a similar new entrance to the Coney Island-bound platform between the station and an ajacent building (it would be similar to the new entrance at Avenue J), but at Avenue M this staircase exists but only as an emergency exit visible from the street behind fencing with locked gates on the street and on the platform.
Photos 1-12: December 9, 2005; 13-28: June 29, 2009; 29-39: January 10, 2012; 40: January 20, 2012