Reason: The A-B speed limit for this segment is 35, while the B-A speed limit is 30.
The 35 zone northbound starts at the McDonald’s driveway, and continues up to the ramps. The 30 zone southbound starts on the next segment north about halfway between the off-ramp and the Bible Hill Rd bridge. The limit for the north half before the sign should probably be 35, though it’s not posted there and is treated as essentially a continuation of the ramp.
For simplicity, I made all segments between Route 149 and the ramps to be 35mph northbound and 30mph southbound.
There really isn’t a statutory speed limit on the ramps that would inform the speed limit for southbound traffic, so I just made it 30mph to keep it simple, instead of a few hundred feet of 35mph and then a switch to 30mph after the sign.