单词	superelevation
释义	superelevation /ˌsuːpərɛlɪˈveɪʃ(ə)n / noun [mass noun] The amount by which the outer edge of a curve on a road or railway is banked above the inner edge.The LC.C. Accident Report assigns the accident to excessive speed on the curve, which had a limit of 20 mph, since it was a 12-1/2 degree curve with only three inches of superelevation.... Mr Gallagher, who is an experienced road construction supervisor, also highlighted a deficiency in the superelevation of the road (agreed by the council) at the site of the crash scene. Okay, the superelevation wasn't that steep, but still…
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