From what I can see on sattellite view the line is single track with a passing siding and station half way between the ends with a center station platform so that both trains on the line meet there. And yes, the famous wreck was there, I think it was Mabone St. or something off like that.
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Yes I went back and looked at Google and it is single track now. This happened sometime since the 1980’s. Also I went and looked at the north end at Fulton St I saw the platform is only big enough for a 2 or 3 car train.
When I looked at the street view I now see that the station has been rebuilt. I would think sometime since the ADA was passed as the new station looks like it has an elevator. Also If you look at the street view of Franklyn at Fulton it appears their is a new retaining wall(in my terms) since I’d seen it last.
Times change I guess.
Thx IGN
Also I was poking around the web and found this site:
http://forgotten-ny.com/2008/04/more-subway-secrets-ancient-ind-pillar-inscriptions-and-more/
Rgds IGN
Also another thing I remember about the Franklin Av shuttle is the use of R-11 subway cars. The IND only had 8 of them. And that I think was why they ended up on Franklin Av. Close to Coney Island for repair, captive service.
Really had to look for pics:
http://tramway-null.blogspot.com/2012/08/r-6-and-r-11-class-cars-at-bay-parkway.html
Thx IGN