[cool_dude85]

I wish more cities would compile and publish this information.

I grew up in Miami that has a sort of less-structured grid system where avenues are the primary north-south roads and streets are the primary east-west roads. There's a through road every half mile, or numbering-wise every 8 streets or 5 avenues. So if you know this fact, you'll know that SW 47th ave is extremely likely to be a through road until it reaches the coast, and SW 42nd Ave is maybe a bit less likely but still probably a through road. Same with SW 88th st (main through road) and SW 96th st (probably a through road). In between these main grid streets you're on your own.

Incredibly, most people I speak to who live there do not realize this! As far as I can tell, it's not explained anywhere on the county or city website, at least that I can easily google. It makes getting around the city's surface streets much, much easier, but it's just not common knowledge.

[glitcher]

Yes, this is a great idea. I grew up with a similar pattern where streets are mostly east-west and avenues are mostly north-south. But whenever I have explored new cities there always seems to be hidden patterns unique to that place, or at least new to me. And figuring out what they are sometimes takes more time than a short visit.

An example that bit me once, before smartphones and widespread gps, is that numbered streets and avenues in Phoenix both run north-south. The numbering gets higher in both directions as you move away from Central Ave, so the smaller numbered streets/aves are relatively close to one another. Very simple pattern indeed, but it was very surprising the first time I encountered it, didn't match my expectations I guess.

[jesterpm]

I wouldn't be surprised if it's not already in the Municipal Code for the city, since they need a way to maintain consistency. For example, here's the divisions in Renton, which are oddly complicated relative to the size of the city: https://www.codepublishing.com/WA/Renton/#!/Renton09/Renton0...