The City of Detroit is tiny compared with modern American cities, such as Houston, Texas (60 miles across from north to south, and 40 miles from east to west). The northern city limit of Detroit is "Eight Mile Road", named because it is eight miles from the border between Detroit and Windsor, Canada. My uncle owned a dry cleaning shop and home near Woodward and Chicago in central Detroit. From his house, it was less than five miles to the bridge to Windsor, Canada in the south, less than five miles to the eastern suburb of Grosse Point Park, less than five miles to the western suburb of Dearborn, and less than five miles to the northern suburbs of Ferndale and Oak Park.
If someone lives near Grand Circus Park in Detroit, they live within about two miles of everything in Detroit worth visiting, including the art museum, Wayne State University, Renaissance Center, Cobo Arean, Greek Town, Comerica Park, Ford Field, and the Opera House. The streets of central Detroit are well laid out, making it fast and easy to bike from "A" to "B" .
That means a person on a bike living in that neighborhood can get anywhere important in Detroit in less than 30 minutes on a bike...less time than motorists sometimes invest hunting for a parking spot.
But, the problem with living in Detroit is you must live in Detroit...and MOST of the families that lived in Detroit in 1960 have chosen to move elsewhere...ANYWHERE else but Detroit.