Complex sentence: On weekdays, N trains ran express between 34th Street in Manhattan and 59th Street in Brooklyn, and local elsewhere; several trains ran express on the entire Broadway Line and short-turned at 57th Street or Times Square during the AM rush hour.
Split into simpler sentences: On weekdays, N trains ran express between 34th Street in Manhattan and 59th Street in Brooklyn, and local elsewhere. Several trains short-turned at 57th Street or Times Square during the AM rush hour.