More efficient train operation and reduced operating expenses with new automatic interlocking which includes thermal cutouts if approaches are occupied too long, and with key controllers to clear signals thus cut out; automatic control replaces manual control of flashing light crossing signals of three streets; high gates at crossing; thermal cutout of approach control.
Automatic interlocking keeps 'em rolling on CGW and Milwaukee road
Ry Signaling Communications
Railway Engineering and Maintenance ; 45 , n 7
1952
3 pages
Article (Journal)
English
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