Smashboards required by Indiana Public Service Commission; presence of two interchange tracks necessitated special control circuits; crossing of single-track main line of Chicago and Eastern Illinois with branch line of Illinois Central at Sullivan, Ind.; elimination of approximately 18,000 train stops a year represent saving of $12,000; normal operation of plant; how switching movements are handled; circuit-control features; smashboard control.
C and E. I. installs Automatic Interlocker at Main Line Crossing
Ry. Signaling
Railway Signaling ; 21 , n 6
1928
5 pages
13 Figs.
Article (Journal)
English
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