Anyone have highway specific data sources?

Hi guys,

I am struggling to find some data and was wondering if anyone had any ideas.

I am looking for data that includes:

  1. highway specific information for commodity/freight type/amount by highway in the U.S. and associated tonnage/value

or a way to show how much commercial use (compared to private use) each highway gets in order to compare them,

  1. and also for crash rates for each weather type by highway


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