When Waze gives navigation Guidance to "switch", "exit", or "preserve" onto an unnamed section, it's going to glance in advance about the suggested route for a road name that it could use. When there is a named phase further more together the proposed route, it will use (inherit) that name https://kingswoodhomes.uk.com/news/blackburn-pupil-wins-competition-to-name-a-street-at-green-hills/