su·per·el·e·va·tion
| \ ˌsü-pər-ˌe-lə-ˈvā-shən
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Definition of superelevation
1
: the vertical distance between the heights of inner and outer edges of highway pavement or railroad rails
2
: additional elevation
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“Superelevation.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/superelevation. Accessed 13 Jun. 2021.
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The first known use of superelevation was in 1840
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