In addition to conventional controls used at new Kirk yard of Elgin, Joliet and Eastern at Gary, Ind, extensive test is being made of newest automatic retarder control system which is based not only on weight of cars, but also speed which is measured by electronic u-h-f radiation using Doppler effect; new Kirk yard replaces eight small flat switch yards.
Electronics at work on EJ and E
Ry Age
Railway Age ; 135 , n 16 ; p 78-82 + 129
1953
Aufsatz (Zeitschrift)
Englisch
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