I don't have Erie drawings, but when I was training an old head told me, for reference when switching, the poles were set two car lengths apart (when cars were 36'/40'), so about 76-80 feet apart. It seemed to work out about right when I used it as such - a bit of a PIA having to translate to 50 car lengths used as standard nowadays but it worked. As for distance from track, typical ROW in NY is one chain wide (66') and usually they were out toward the edge of that whenever practicable, but topography dictates in a lot of places. It seems like there are quite a few places where the Erie ROW was wider (particularly the Buffalo division), probably 100', with the pole line out in the edge of swamps in places. Between Hornell and Olean it seemed like one chain with poles at the edge. Also, where there's high fills, the ROW usually widens to encompass the whole width of the fill, and pole line often follows the bottom edge of the fill, sometimes so much you're looking down at the top of the poles from the track/cab.