Highway Data Discussion > In-progress Highway Systems & Work
usaal: Alabama State Routes
froggie:
By popular demand (i.e. enough private messages), and also because it's less complicated than Mississippi's system (despite the mostly-hidden concurrencies AL routes have underneath the U.S. routes), I've opted to begin work on the Alabama State Routes list.
Primary sources will be the route log located at the end of the ALDOT Annual Report (updated annually...linked is the most recent FY 2017 version), and the county-level Milepost maps (which are typically updated more often than the county-level highway maps). I also have considerable experience with Alabama, having been to all 67 counties and being stationed twice next door in Mississippi.
Regarding underlying state routes concurrent with U.S. routes, my philosophy is such: if the underlying route is signed, I will include the segment. If not signed/it's hidden, I will not include the segment. So, for example, I will include AL 13 where it's concurrent with US 43 north of Spruce Pine because it's cosigned there, but I will not include AL 13 south of Berry because that's where it goes hidden. Because of this, the lowest route number I will be including is AL 5.**
(EDIT:) ** - AL 4 is a murky one. It's supposed to be the hidden concurrency with US 78 across the state, but it's also signed along some of the newer Corridor X segments. I'm not sure offhand A) whether to include it or not (despite what I mentioned above), or B) what the endpoints of its signing are.
froggie:
First question-mark area: the 4-lane connector between I-20/59 Exit 1 and US 11/80 in Cuba. Officially, it's a hidden segment of AL 8. But there's very little in the way of signage. From I-20/59, it's signed as "TO US 80". At the US 11/80 intersection, there are a few TO I-20/I-59 trailblazers but nothing on the mainline itself leaving the intersection. And the street blade on the overpass at I-20/59 says "SPUR US 80".
It seems too important of a route connector to not include (it's on the NHS too), but I'm not sure how to mark it, or even if I should include it. Thoughts from the collaborator masses?
yakra:
Not signed as part of AL8 itself, I'd say leave it out.
vdeane:
Awesome! Once this is in preview, there will finally be state route systems on the map for every state I've actually been to, and I'll finally have a .list file free of commented out "speculative" entries.
mapcat:
--- Quote from: yakra on August 18, 2018, 01:51:44 pm ---Not signed as part of AL8 itself, I'd say leave it out.
--- End quote ---
Agreed.
Thanks for working on this set.
Navigation
[0] Message Index
[#] Next page
Go to full version