Thingummy
This gap in the barrier is not marked as a junction in any way, going south. Lane edge lines are continuous and uninterupted. Also outer lane edge mark is uninterrupted going north and there is a mandatory Left turn sign from Taylors lane. So I have marked as emergency accesss only. Not to be used in normal running, as crossing the central reservation on a clearway, other than where marked would commonly be considered below the standards expected of a competent driver and therefore dangerous driving. Although I am not aware of a specific law aginst it. I am not a expert.