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A large Amtrak and Metra coach yard just south of Chicago Union Station. About 25 percent of all rail traffic in the United States travels through the
A large Amtrak and Metra coach yard just south of Chicago Union Station. About 25 percent of all rail traffic in the United States travels through the Chicago area.
Yard for Amtrak equipment, located next to the Los Angeles River. The two tracks on the left are the mainline.
Yard for Amtrak equipment, located next to the Los Angeles River. The two tracks on the left are the mainline.
The "hump" of a hump yard. Railcars travel past retarders, which control their speed, and are directed onto tracks to be assembled into new trains. Th
The "hump" of a hump yard. Railcars travel past retarders, which control their speed, and are directed onto tracks to be assembled into new trains. The control tower operates the retarders.
A coach yard in Shanghai, China
A coach yard in Shanghai, China
Godorf Station, Cologne, Germany
Godorf Station, Cologne, Germany
Not all cars can be sent over a classification hump. This Union Pacific track maintenance vehicle is permanently labeled "Do not hump" because it is n
Not all cars can be sent over a classification hump. This Union Pacific track maintenance vehicle is permanently labeled "Do not hump" because it is not designed to withstand hump sorting.
The retarders grip the sides of the wheels on passing cars to slow them down.
The retarders grip the sides of the wheels on passing cars to slow them down.
A CNW towerman operates the retarders at Proviso Yard in Chicago, Illinois (1943)
A CNW towerman operates the retarders at Proviso Yard in Chicago, Illinois (1943)