southglos
Speed limits need figuring out here; there seems to be a transition between 30 & 40 mph without any visible signs.

A48 is 40mph (although very lacking in repeater signs)

Cardiff Road northwest of A48 is signed dropping to 30mph

Cardiff Road southeast of A48 is unsigned - no start of a 30mph after the A48, but no 40mph repeaters on it either.  30mph seems most likely.

Mill Lane starts from the 40mph A48, and ends on Cardiff Road which we're guessing is a 30mph, but has no speed limit signs.