EdLoach
I'm fairly sure it is buses only (possibly also taxis and bikes), but I visit so infrequently now it seems to change almost every time I'm there. I think there is disabled parking in the (oneway) Exchange Street so if that is mapped correctly, there is presumably access from Queen Square. I'm there in about 2.5 weeks, probably, so will try and have a look. Did I not upload Mapillary images when I was last there? I had intended to. Perhaps they weren't any help