It's may sound trivial, but I tagged it to as primary to match the rest of the road since this is the last ramp to intersect Lake Mead Parkway before it merges with the Beltway. This is the same logic used for the other side of the road but in reverse (where Lake Mead Parkway meets the I 11 N to 564 E ramp). Technically, traffic going from west 564 to I 11 south isn't entering a short freeway before turning onto a completely different highway, but traffic that goes straight does, as that's a mainline highway segment (of Lake Mead Parkway/564) that directly merges with another freeway with no actual ramps.