Roslyn station question

[rdgrailfan]

I was reading a 1963 ETT for the Philadelphia division and was stumped with a reference to Roslyn station
"
Roslyn W. E. D. T - checked abbreviations, none line up to "WEDT, only station to reference this after station name.
Any ideas what the reference to W. E. D. T. would be?

[LNE655]

EDT stood for End DoubleTrack. I'd assume the W stood for "westward", which was the TT direction, even though it was going east.