The AASHO Road Test is the ultimate source for the 4th power rule. https://en.wi... | Hacker News

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logfromblammo on March 8, 2017 | parent | context | favorite | on: To fix L.A.'s traffic, we need tolls

The AASHO Road Test is the ultimate source for the 4th power rule.

https://en.wikipedia.org/wiki/AASHO_Road_Test

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