The Allegheny County Belt System color codes miscellaneous county roads to form a unique system of routes in Allegheny County, Pennsylvania and around the city of Pittsburgh.
Unlike many major American cities that utilize number-coded limited-access roads to form belt systems, the belts in the Allegheny County Belt System are not intended to be used as a high-speed routes. Rather, the belt system is to be used as a navigational aid for motorists in unfamiliar portions of the county. Roads that make up the Belt System retain their previous names. The five original routes are, from outermost to innermost, the Red, Orange, Yellow, Green, and Blue Belts. The Purple Belt was not part of the original system and was added later.
Read more about Allegheny County Belt System: History, Composition
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Monadnock, on his forehead hoar,
Doth seal the sacred trust,
Your mountains build their monument,
Though ye destroy their dust.”
—Lydia Huntley Sigourney (1791–1865)
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