Or at the very least, it gives some options. Now if you extend I-27 to Denver, then extend the proposed US-412 interstate out to Boise City...build some bypasses on US-270 northwest of OKC, and now you're talking...
That's still a really huge "L" shape between Woodward and Kit Carson. A diagonal route direct from OKC to Denver would be far better for those two major metro areas,
not to mention provide a far more direct gateway from the Front Range to the Southeast US.
Currently there isn't even so much as a very basic 2 lane road connecting Denver diagonally down to the South. I guarantee if the existing Southeast diagonal starting on I-70 East of Denver going down to Limon and continuing as US-287 to Kit Carson was continued to Fort Supply/Woodward, OK there would be a lot of traffic using it.
Even if it was just a 2 lane road.The highway system across much of that huge area of the high plains is a NSEW grid that would benefit a very limited amount of long distance traffic. There are some diagonal routes in that area, such as US-54 & US-56, but those routes are all geared to the old model of moving traffic from the Northeast US down toward California. There are no diagonals at all going Southeast to Northwest. The only exception is US-64/87 in Northern New Mexico, but that is pretty far out of the way for something like traffic going thru OKC heading up to Denver.
The US-412 Interstate proposal is really only going to benefit Oklahoma in terms of a Tulsa to NW Arkansas connector. I could see the Cimarron Turnpike extended from I-35 over to Enid and then
maybe Woodward.
IIRC, the original Plains to Ports (aka I-27) corridor in the '70s was to run from Lubbock to Houston. Somewhere along the way it morphed into Lubbock to Laredo (?).
There has never been any Lubbock to Houston proposal of the Ports to Plains Corridor. Given the location of Lubbock, the most direct paths from Lubbock down to Houston go thru the DFW metro via one of two corridors: US-82 to Seymour to pick up TX-114 or US-84 down to Roscoe to pick up I-20. Either route goes into DFW where the traffic would pick up I-45. Any other route combinations are going to be more complicated. Lubbock is not enough of a major destination to gain a 460+ mile long freeway route direct to Houston.
The prevailing thought is that if a long-distance corridor like US 287 were to be reconstructed as a full freeway, it may as well be designated as an Interstate -- which over the past 65 years has "morphed" into a brand name (think Kleenex when referring to tissue paper) that carries considerable weight with parties, often based overseas, that are looking to locate distribution sites for their products. The criteria they generally employ cites rail and Interstate access as boxes to be ticked off during the selection process (some have even gone so far as to parse out Interstate trunks/1-2di's as preferable). So while the physical characteristics for Interstates are more specific -- shoulder width, bridge clearance, etc.), following those these days with facilities that would be built "from scratch" and/or on new terrain alignment would entail relatively minimal cost differences when considered within the scope of building a new freeway in general.
In the case of US-287, a LOT of motorists would benefit by that road being upgraded 100% to Interstate quality from Amarillo down thru DFW to I-45. There are numerous speed zones along the way
and plenty of opportunity to get tickets from Texas DPS. Lots of trucks are on that route in general. Traffic gets particularly worse when you get close to Decatur and on into Fort Worth.
Distribution centers are a big and growing business in the Central US. Amazon is already expanding the huge facility they opened in Oklahoma City. Smaller cities
with lower costs of living and business can be especially attractive if they're near a road/rail intersection of significance. Wichita Falls could see a boost in business if US-287 was upgraded to Interstate quality.
That's unnecessary. It is already is a mostly free flowing 4-lane divided, with overpasses at most significant intersections. All that is needed is a Post bypass, 2 miles of freeway upgrade & interchange in SE Lubbock connecting to 289, and maybe overpasses in Hermleigh and Roscoe/608.
US-84 between Lubbock and I-20/Roscoe is probably sufficient in its current form: 4-lane divided highway with a couple limited access segments.
Expressways are sufficient for rural west Texas.
That depends on the location and the
big picture purpose of the route. The Ports to Plains Corridor isn't about making it easier for local traffic in small West Texas towns to get around. It's about connecting far more significant destinations (metro Denver, Amarillo, Lubbock, Midland-Odessa, San Angelo, Laredo), just like any other long distance Interstate that crosses through desolate stretches. The leg of US-287 between Amarillo and DFW is more regional in nature: keeping up with the virus-like growth of the DFW metroplex and the increasing demands it will place on the regional highway network.
It's going to take many years (or even decades) for the P2P Corridor to get fully built out into something like an Interstate. But the continuing migration of population in the US to places like Texas and Colorado will increase the urgency to fully build out that corridor. The very least thing that should be happening now is getting freeway loops/bypasses completed in various cities along the way and then working to secure right of way for future expansion. Much of US-287 in between Fort Worth and Amarillo would be easy to upgrade, particularly the Wichita Falls to Fort Worth stretch because much of the freeway ROW has been preserved for decades.