Complex sentence: As originally intended, the island platforms facilitated an easy transfer between local and express, while the shorter side platforms provided easy access from local trains to the street; this was also the design at Brooklyn Bridge and 14th Street on the IRT Lexington Avenue Line.
Split into simpler sentences: As originally intended, the island platforms facilitated an easy transfer between local and express trains, while the shorter side platforms provided easy access from local trains to the street. This was also the design at Brooklyn Bridge and 14th Street on the IRT Lexington Avenue Line.