As a counterpoint to Duncan's description of Bedford Village, let me give you a brief history of Durham NC. It was founded in 1847 when a local dentist, Dr. Benjamin Durham, donated three acres to the railroad to build a station. The railroad allowed the town to centralize the tobacco production, and it became a farm center (and later a manufacturing center, first for cut tobacco and then for manufactured cigarettes; early in the 20th Century, 95% of the manufactured cigarettes IN THE WORLD were made in Durham).
The railroad ran more or less diagonally from upper left (NW) to lower right (SE) on your map. The area above the rail line was the City of Durham; the area below the line was unincorporated County land. As African American millworkers in cotton and tobacco started to make a little bit of money in the factories, they wanted to buy land and build houses, but couldn't afford both property and property taxes. So they bought in the unincorporated area below the tracks, and the railroad was a clear social and cultural dividing line (not unlike those in the factories, where men worked in one building and women in another, where white men and women worked on the first floors and Blacks worked on the upper floors).
As the African American community started to accumulate some capital, businesses small and large rose up to accommodate them. Parrish Street came to be known as the Black Wall Street with banks and insurance companies serving the African American middle class throughout the South , and the Black neighborhood called Hayti (pronounced HAY-tie) was a vigorous middle-class community.
Fast-forward to the 1970s. Duke University (Durham), the University of North Carolina (Chapel Hill), and the North Carolina State University (Raleigh) had bought and developed a few thousand acres in the center of the 20-mile triangle between them and built a research-oriented business park called Research Triangle Park (RTP). RTP was booming, with over a hundred research-focused organizations ranging from Xerox to the US Department of Agriculture having labs there. (For those of you who know David or Amy Sedaris — they grew up in Raleigh because their father worked for Xerox in RTP.) And there was no significant highway from Durham to RTP as there was with Interstate 40 running between Chapel Hill and Raleigh. So the Durham Freeway was built... you guessed it... right through the heart of Hayti, cutting a 1.5-mile-wide swath through the most successful Black community in the Southeast. And that was the end of that.
What examples do you know of "the other side of the tracks?"