I think the confusing aspect is the way the markings that come down the middle of the road from top right, which look like the markings that divide the northbound from the southbound lanes, don't show any point where a southbound road user who wants to turn right could properly cross those markings - I would expect to see the southbound lane split in two, rather than having (as appears to be the case here) a give way marking in what appears to be the opposite (northbound) lane. Having said that, I'm not sure that's the worst feature of this junction.
This is just round the corner from son number 1's school so, not surprisingly, there's been a lot of talk there. i don't know yet if he's having to deal with idiotic comments at school - he has a slight tendency to get a bit militant about cyclists' rights, which I admire, but he probably ought to be concentrating on his "critical thinking" exam today.