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Going with Meghan’s white top was the traditional Nigerian aso oke, a patterned handwoven fabric wrapped around the waist and often reserved for special occasions.

She presented Meghan and Harry with an outfit made of aso oke, a hand-woven cloth from south-west Nigeria.

Aanen Moody and Laolu Oke each scored 14.

"We had 60-some-odd indicators. But now, we can just really focus our money on capturing the ones that we need," says Oke.

Published in the journal Transportation Research Record, the study was a collaboration between UMass Amherst civil and environmental engineers Jimi Oke, assistant professor; Eleni Christofa, associate professor; and Simos Gerasimidis, associate professor; and civil engineers from Egnatia Odos, a publicly owned engineering firm in Greece.