A doll post is the upright arm on a signal pole between the main
signal head and a dwarf CPL. It notifies train operators that
each signal controls a different track. Masts with doll posts
were made taller than others for better visibility from either
Here at East Van Bibber the B&O had considered a building a line called
the Patapsco and Susquehanna Branch which would have connected to the
Old Main Line east of Sykesville near Gorsuch, thus bypassing busy
Baltimore and its Howard Street Tunnel bottleneck. The project did
not get past the planning stage.
The Van Bibber siding is roughly 2 miles long.