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Re: Another problem on (L) train @ Bedford Av

Posted by HANDBRAKE on Sat Mar 24 21:53:22 2012, in response to Re: Another problem on (L) train @ Bedford Av, posted by JayZeeBMT on Sat Mar 24 12:51:10 2012.

As mentioned more than once in earlier posts, the BMT considered all Manhattan bound service as North. On the former BMT Eastern Division, J track (J/Z Line) North ends at the geographic south end of the Chamber Street station where it meet the North end of "R" Nassau tracks. J1 becomes R1, and R1 becomes J1. The two center tracks at Chmabers (J4&3), become R3&4 then merge into a single tail track R3/4.

At this rail junction the two track chaining codes end at a common North termination point, yet are geographically opposite each other.

All former eastern division odd numbered tracks in Brooklyn and Queens are considered South, even numbers towards operating North (Wayside signals will display track chaining codes).

The Archer Avenue terminal chaining codes show the upper level IND tracks with codes D2A/D1A (North Terminal), and the BMT tracks located on the lower level as J1/J2 (South Terminal).

Interesting note. The Liberty Avenue Elevated line continues to use the former BMT eastern division chaining code scheme (K1/K2), but happens to fall into the correct North/South chaining convention as a result of that line being connected to the IND Fulton Street line.

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