Definition of "at-grade" [at-grade]

• Describing a junction or intersection where two or more transport axes cross at the same level (or grade). (adjective)
• Railroad built upon an evened, ground level length of land. (adjective)

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• "The 1994 Swift Rail Development Act created a mandate to support the existing practice of an operator sounding a locomotive's horn, as a warning to traffic, a half-mile before the train reaches at-grade crossings, on which vehicles cross the train tracks at the same level as the locomotive."
• "The Virginia Department of Transportation is building a four-lane bridge on Route 28 over Wellington Road and the Norfolk Southern Railroad tracks in Manassas to eliminate the at-grade crossing."
• "Adding turnstyles to the at-grade, median stops along MLK would be harder, since its the entrance to the station is not physically defined by a stairway, or escalator."