Editorial Standards and Corrections
The rules the articles were written under, stated precisely enough that a reader can hold a page to them.
One sourcing rule, applied without exception
A document may be cited only if it was retrieved and read during the writing of the piece that cites it. A remembered study, a plausible-looking title and a figure that circulates without an origin are all treated the same way, which is that they do not appear. Primary material comes first: federal agencies, state transportation departments, the Transportation Research Board and its cooperative research programs, AASHTO, and peer-reviewed literature. Content aggregators are never a citation.
Sources are named in the prose at the point the claim is made, and again in the list at the foot of the article, which is generated from the article's own data rather than typed by hand. Naming the document inside the sentence shows which authority carries which claim, instead of leaving a pile of links to be reconciled at the end.
Figures carry their origin, and hedges are stated as hedges
Every number traces to a listed source and appears with the year and the body that produced it, because federal figures move between editions and a dollar amount without a year is close to useless. Where a figure could not be verified, the article says so and does the next most useful thing: gives the range, describes the method that would produce a real answer, and names the organization that would hold it. A stated uncertainty is a finding here rather than a gap in the writing.
Government documents get moved, renumbered and withdrawn, so titles and identifiers are recorded precisely enough that the material can be found again once a link breaks. Several agency hosts also refuse automated retrieval; where that happened, the article worked from another authoritative host carrying the same document and said so.
Dates, attribution and voice
Articles carry a fixed publication date recorded in the page's data and in its structured markup. Nothing is backdated, and no date is generated at build time, because a modification date that moves on every deployment tells search engines the archive was republished when nothing was written. Work appears under the publication's name, with no bylines and no invented author identities, and the voice is editorial third person: the site describes what engineers and agencies do and never claims to design, build or inspect anything itself. There are no reader endorsements, ratings, awards or badges, because none has been earned and an unearned one is a fabrication in a decorative shape.
Corrections
A correction is worth more to this site than any other message it can receive. Write to contact@sustainablehighways.org naming the page and quoting the sentence, and where possible the document that shows the error. Reports about a figure, a date, a standard number, a regulatory citation or a misread source are all in scope.
A confirmed factual error gets the text fixed rather than the page quietly withdrawn, with the change noted in the copy where it is material to the argument. Disagreement about interpretation gets a different treatment: a defensible reading that conflicts with the site's is worth publishing alongside it rather than in place of it. The route for either is the contact page.