Track_ShovelMar 12

OP hates highways

https://slrpnk.net/post/35192351

Show threadpercent

It’s really not that complicated. The only other direction to go on I-65 is north.

Interstates with odd numbers run north and south. Even numbers run east and west.

Mar 12 at 3:26amWeb
Show threadPmanMar 12
I think it is usually multiples of 10 as well so for example I-5 runs from the border in San Diego (or close enough) to the border with Canada. I-10 runs from LA in California to Jacksonville Florida, smaller routs ending in 2, 4, 6, or 8 are small sections that terminate a few towns over usually or connectthe bigger highways to eachother.
Show threadpercentMar 12
Ah, interesting. The number of digits means something too. 3-digit numbers are… Some other kind of routes. I’m too tired to remember exactly 🤦🏻‍♂️
Show threadgrueMar 12
Basically, routes meant to serve a metro area/region instead of being actually cross-country. Think ring roads around cities and whatnot.
Show threadjack_of_sandwichMar 12

Nah.

Around here I-76, I-78, I-80, I-84 (what happened to 82? I don’t know); are all major roads that go through multiple states

Going the other way 81, 87, 95 are all significant

Show threadPmanMar 13
They could be major in your local area and go through multiple states but the big ones ending in 0 or 5 tend to go across the country. And I-80 and i-95 would fall into that category, if those roads stay in a lower tier or get expanded later is another story.
Show threadFilthyShroomsMar 12
The way I always remember is both North and South have an odd amount of letters (5), and East/West have an even amount of letters (4).
Show threadColeSlothMar 12
Sure, but use Google maps and have a look at “i-435”
Show thread_stranger_Mar 12
And I thought I-45 being an “interstate” that only exists in Texas was bad!
Show threadShave_MyBeeverMar 12
There are interstates in Oahu if that helps, ha ha
Show threadSTUNT_GRANNYMar 12
Also Alaska and Puerto Rico! The interstate signage is more about the funding source than where the highway actually goes.
Show threadAA5BMar 12
Three digits starting with even are loops, starting with odd are spurs. Thats why I-495 can be both the capital beltway and loop around boston
Show threadpercentMar 12
Three digits are auxiliary routes. Some are loops, some are spurs, some are… Something else. I don’t remember the specifics, but there are more details to the auxiliary routes.
Show threadrecursivethinkingMar 13

Similar overlaps over in NY with 87/287, and 95 does something shifty near there also.

BTW there are multiple I-495s and 2/5 are Spurs

Show threadAA5BMar 14
Oh yeah, I always hated that. I used to visit my ex’s parents down in that direction and I knew the way from having driven it every year but if I tried to give directions I never could remember which is 287 and which is 278
Show threaddiabetic_porcupineMar 12
In what world is that not complicated
Show threadpercentMar 12
How could it be less complicated?
Show threadCaptain AggravatedMar 13
I’m a flight instructor, have been for over a decade. Ask me how VORs work. In my world, highway numbering is not complicated.