I found this an interesting look into The US Forestry service's philosophy of road management through the lens of Washington State's Olympic National Forest.<p>"The Forest Service – a branch of the Department of Agriculture whose original purpose was to “furnish a continuous supply of timber for the use and necessities of the people of the United States” – classifies their roads into five buckets based on their method of construction and maintenance needs. And the agency seems to be highly tuned to the lifecycle of their road infrastructure..."<p>(Discovered through <a href="https://kagi.com/smallweb/" rel="nofollow noreferrer">https://kagi.com/smallweb/</a> featured on HN a few weeks ago)