"Subways - Now On the Platform; Elevated or Subterranean"

What to do, what to do, what to do? Many signs to be read & obeyed or ignored. Advertisements, many expressly designed to be seen on a train platform, to be noted. Sculptures,mosaics, terra cotta reliefs, murals to be admired. Music to be heard. Maps to be interpreted. Stations to be assessed; some in desperate need of care & repair & some magnificently restored & renovated. Except where noted all photos are of the NY Transit System.