Calvin Whitlock is the founder and lead reviewer at USA RV Directory and the creator of The Big-Rig Standard™. After years of full-timing in a 40-foot-plus Class A — and one too many “big-rig friendly” campgrounds that physically weren’t — he got tired of guessing and built a fix: a uniform 1–10 score that rates every campground, restaurant, fuel stop, and route segment on the same measurable criteria (length, pull-through, approach and turn radius, low clearance, fuel access, grade, and overnight rules). He writes and scores the directory’s campground, restaurant, and route guides.
What Calvin writes about
- Big-rig-friendly campgrounds, state by state — each scored 1–10
- Restaurants with verified big-rig parking
- Big-rig-friendly route stops, sequenced by milepost
- Practical guides — overnight rules, length limits, clearance, and grade
How he scores
Calvin’s authority rests on lived experience and a documented method, not on credentials he doesn’t hold — he is not a licensed engineer and makes no such claim. Every score comes from the same eight data points and the published Big-Rig Standard rubric. Published specs are stated plainly; derived values are marked inferred; safety-relevant fields (low clearance, grade) are kept conservative. No business pays for placement or for its Big-Rig Score. Content is AI-assisted and human-reviewed.
Contact: calvin@usarvdirectory.com