Bathroom stops along your route
Beta corridors: these are curated, precomputed routes between the metros we cover best — not live directions to anywhere. Coverage is deepest inside the listed metros and thinner on the highway between them, and each corridor page shows exactly what we have, gaps included.
The I-95 spine through our four deepest eastern metros. Coverage is strong inside Boston, New York, Philadelphia, and Washington DC themselves; the highway stretches between them are much thinner, and we say so rather than padding the list.
The I-5 run down the Southern California coast. Coverage is deepest in Los Angeles and San Diego; the coastal stops in between (Long Beach, Anaheim, Oceanside) reflect what we actually have, not what a road trip ideally wants.
The I-15 desert run. Both endpoints are covered metros; the desert between San Bernardino and the state line is genuinely sparse, and this corridor uses a wider search radius precisely because stops are far apart out there. What you see is what exists in our data.
The I-5 corridor through the Pacific Northwest's two best-covered metros. Portland and Seattle themselves are deep; Olympia and Tacoma sit between them with whatever coverage we actually have.
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