Amtrak trains arrive at the 30th Street Station, at 30th and Market Streets. David Rittenhouse Laboratory , at 33rd and Walnut, is a short taxi ride away. One can also walk (about 15 minutes). Coming out of the station, turn right (west) on Market Street. Walk to 33rd and turn left. Walnut is the second major street (after Chestnut). DRL is on the SE corner.
SEPTA regional rail trains also arrive at 30th Street Station.