Plenty of upgrades are needed along this corridor before this corridor is up to full freeway standards. Between Interstate 44/OK 364 and the western end of the Cherokee Turnpike, US 412 has plenty of at-grade intersections, which would need to be grade-separated or cul-du-saced to bring the roadway up to freeway standards. There are already interchanges at OK 88 and US 69, and more will likely follow in the future. Also, off the end of the Cherokee Turnpike, the construction of a Siloam Springs Bypass, and the completion of the Springdale Northern Bypass would be required to make the Tulsa-Tontitown corridor a full freeway/tollway. US 412 west of Tulsa has it easier, as it only needs to be brought up to Interstate Standards and the only remaining at-grade intersection is at Diamond Head Dr., as mentioned before.