By means of talk back speaker system, one checker directs work of crews in two cars, and with separate paging system, foreman directs overall operations in large transfer on Southern Railway at John Sevier Transfer, Knoxville, Tenn.
Portable communications booths expedite operations of LCL freight house
Ry Signaling Communications
Railway Signaling and Communication ; 43 , n 7
1950
Article (Journal)
English
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