Road Sign Math

Randy Weiss found this truly fascinating sign at the entrance of Dinosaur National Monument in Utah. Up to this point the math in our signs has been composed of mainly units in miles or road numbers, with an occasional exit number added for fun. This sign will have none of that. Instead, this sign [...]

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Just south of Flaming Gorge National Recreation Area (really, that’s what it’s called!), in the Ashley National Forest, comes a small and humble tribute to mathematically significant roadsigns. It’s unclear what the orange trail marker on the sign is designating. Randy Weiss brings us this Utah sign.

There is only so much you can say about [...]

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Randy Weiss found this mathematically significant roadsign in Utah. While descending the mountains via a number of switchbacks he started seeing a pattern. Each switchback had a different speed limit depending on the radius of the turn and the pitch of the highway at that point, and they announce how many more switchbacks to come [...]

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