Bill, you may want to check this out, it contains the track diagrams for all of the PRSL's interlockings, as well as some related information, including speed limits. http://broadway.pennsyrr.com/Rail/Prr/M ... _prsl.html. According to the diagrams, maximum passenger speed between Crook Horn and OC station was 45 mph, Tuckahoe to the bridge was 50 mph and Winslow to Tuckahoe was 70 mph. Apparently there were also searchlight signals governing traffic into and out of the station up to at least 1968. I have no recollection of them but do remember the signals and smashboards protecting the bridge. The mast for the westbound signal and a good portion of the rodding that controlled it are still observable along what's left of the ROW west of 51st Street.