A sump buster (also known as a sump breaker) is type of bus trap, a device used in urban areas to restrict traffic access on various routes. Similar (in use but not design) to rising bollards, sump busters are often used in bus lanes to prohibit their use by cars.
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Famous quotes containing the word sump:
“What did it matter where you lay once you were dead? In a dirty sump or in a marble tower on top of a high hill? You were dead, you were sleeping the big sleep, you were not bothered by things like that. Oil and water were the same as wind and air to you.”
—Raymond Chandler (1888–1959)