I am looking at some railroad Valuation maps and can't quite make sense of the distance measurements used on them. For example: Station 0+00 to 105+60 Station 105+60 to 211+20 Can someone explain how I can interpret them or convert them into more traditional measurements like feet and miles?
Those are survey log measurements or notations. I expect they are distances and not elevations. I used to drag the chain and cut bushes and I never did understand those things they wrote in the survey log. Probably a website here somewhere that explains it. There is probably a bench mark somewhere around there that will tie it all together. Here's a little light reading on the subject.
I agree, these look more like survey notings. Try posting this to the Ready Track, or maybe one of the Admins or Moderators will be kind enough to move it there.
The B&M valuation map I have has a notation in the lower right hand corner that says the scale is 1 inch = 100 feet. Duane Goodman
These represent profile markings. A profile is the route of travel that a roadway, rail, or pipe travels, but from a elevation perspective, and not a plan view--stated more simply looking at the subject from a straight on and not top down. The first number represents the distance in the "X" dimension from the origin as viewed on the drawing, or from east to west . The second number represents the change in the "Z" direction, or out of the page, a plus value is toward the viewer, and a minus is away from the viewer. I probably didn't explain it very clearly, but I hope it helps.
When I worked for the NYCTA, there were numbers similar to those in the op's post that were used to indicate distance from a noted starting point. They were called column numbers, stenciled onto girders or concrete walls and were placed 50 feet apart, so the starting point would be 00+00. Go 50 feet away and the number would be 00+50, go one mile and the number would be 52+80. A number of 1525+00 would be 152,500 feet from that starting point. Signals on the right of way would be given the number of the closest column number along with the track number such as 1-1525.
