Improved operation and reduction of damage to lading have been effected in Northbound Markham, Ill, hump classification yard of Illinois Central by installation of loud speakers mounted on poles near mid-point of yard; either office at hump or yard master's office at lower end of classification yard may issue instructions over speakers; description of system given. (See also Ry Signaling v 37 n 2 Feb 1944 p 95-7)
Loud speakers aid yard operation
Ry Age
Railway Age ; 116 , n 13
1944
2 pages
Article (Journal)
English
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Loud speakers aid yard operation
Engineering Index Backfile | 1944
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