Context for Oklahoma:
I-44 MM 123 is in Northwest Oklahoma City, right at the interchange with other two highways that serve that part of town: SH-3 (Northwest Expressway) and SH-74 (Lake Hefner Parkway). Gateway to your upper-middle-class suburbia.
I-44 MM 31 is south of Lawton, just before the last free exit before the turnpike that carries I-44 to Wichita Falls. Useful, but not a direction most Oklahomans are traveling, clearly.
US-64 looks like it's somewhere in the Tulsa freeway system, possibly at the interchange between the Mingo Valley Expressway and the Broken Arrow Expressway. US-77 is kind of surprising, since it's in a fairly populated corridor its entire time in Oklahoma, but then again no, because I-35 does the same thing as US-77 and does it better.
The SH-3/74 concurrency is part of the aforementioned gateway to Northwest OKC; most of the traffic that passed through the segment of I-44 with the high count also passes through this section of 3/74. I was a little surprised to see SH-49 as the low, since I figured it would have been SH-87 or one of the spurs, but that segment of SH-49 is the back way into the Wichita Mountains Wildlife Refuge, so it makes sense there wouldn't be a ton of traffic there.