Road Sign Math

Roger Knowles brings another sign from Oregon. This sign is in english, believe it or not. How great would it be to be able to tell people to get off on Clackamas to come to visit you? Great math here, almost as great as the names in the sign. 224 – 212 = 12 This [...]

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Roger Knowles puts another mathematically significant roadsign up for Oregon. This sign comes on the overpass of what may be one of the oddest names for a street we’ve seen — Going Street. Nice math in this sign. 3 \times 2 = 6 This sign I-5 northbound at Going Street in Portland, Oregon. The GPS [...]

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Roger Knowles brings another gantry sign from the interstates of Portland. Oregon seems to have a thing for these signs 1 mile apart. The math is very obvious on this one. 303 + 1 = 304 This sign I-5 just after broadway in Portland, Oregon. The GPS coordinates are approximately N45.54069 W122.67138. See sign on [...]

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Roger Knowles extends our string of new state introductions with Oregon coming onto the map. This gantry brings together two signs and makes the math work like peanut butter and chocolate. 290 – 1 = 289 This sign I-5 northbound just north of the 205 exchange in Oregon. The GPS coordinates are approximately N45.37798 W122.75386. [...]

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Frank Kaszar, another first-timer to our wonderful game, brings us another new state with a mathematically significant roadsign. Ohio makes it’s debut on Road Sign Math with this great sign. The city of Ravenna has a striking name, however, it seems it’s history is rather plain for such a great name. Picture taken at night. [...]

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Mark Gonzalez makes his first submission to Road Sign Math with a splash. Mark is a fan of mathematics, and has been looking for a while for a sign to submit. He certainly did a great job with this one. Mr. Gonzalez did however leak this sign on his own blog before it’s release here. [...]

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Dennis Daily brings only the second sign from the cheese state of Wisconsin. This sign is caught “at speed” while cruising down the interstate. The math here is very nice, and fairly easy to catch. Just need to notice the 9 and the 1! 95 + 1 + 9 = 105 This sign is on [...]

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Randy Weiss comes back with another sign from Massachusetts. This time the town of Westin shows off some mathematical significance. Mr. Weiss worked on the math long and hard to come up with the highest scoring combination he could find. \left( \sqrt{ \sqrt{ 20 – 4} } \right) ^ 3 = 20 – 12 This [...]

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Dave Oosterhuis discovers the wonder of parking signs and the mathematical relationships found in them. Mr. Oosterhuis explored a number of solutions for this sign and finally settled on this one. \sqrt{9} – \sqrt{4} = 7 – 6 This sign is found on Lyndale Avenue, between 38th and 39th street south in Minneapolis, Minnesota. The [...]

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Gerald Thurman brings us the first bilingual mathematically significant roadsign found. Of course with math we don’t have to worry about that, because it is the universal language. Where this sign is found you could probably hit a golf ball into Mexico! Mr. Thurman brings together a variety of different types of numbers in this [...]

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