I don't know if I'd really characterize that as a problem though. I did a lot of research for this a while back and a lot of research has been done that shows demonstratively, one of the best way to dramatically improve educational outcomes is integration (both economically and racially, though the two are many times closely linked). And because of many factors that almost always involves bussing students to schools in different neighborhoods than the ones they live in. Despite the narrative that bussing in the 70's and 80's failed the honest truth is that all the studies showed that it worked until the more affluent white parents fled to the suburbs (for good and bad reasons). Integration of schools is inconvenient and it takes time for everyone involved to adjust but the research is pretty clear that it is overall a good thing for pretty much all parties involved.

http://school-diversity.org/pdf/DiversityResearchBriefNo1.pd...

https://occrl.illinois.edu/files/Projects/ccr/Library/Newton...

http://www.tcrecord.org/content.asp?Contentid=15664

https://www.npr.org/sections/ed/2015/10/19/446085513/the-evi...