Expansion Joint
Expansion joints are a construction that allows the rails to move relative to each other due to changes in temperature while retaining continuity for through traffic. They are often used on large bridges such as the Sydney Harbour Bridge.
Read more about this topic: Railroad Switch
Famous quotes containing the words expansion and/or joint:
“The fundamental steps of expansion that will open a person, over time, to the full flowering of his or her individuality are the same for both genders. But men and women are rarely in the same place struggling with the same questions at the same age.”
—Gail Sheehy (20th century)
“What’s a joint of mutton or two in a whole Lent?”
—William Shakespeare (1564–1616)
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