Robert Moses on building infrastructure that specifically kept blacks and Puerto Ricans out of the Long Island suburbs:
> The legacy of segregation in the suburbs, too, can be attributed in part to Moses’ personal biases, Caro says. The city planner didn’t want poor people of color from the city accessing Jones Beach, which was established while Moses was President of the Long Island State Park Commission, so he made it illegal for buses to travel on the parkways there. Furthermore, Caro says, “Then he had this quote, and I can still hear him saying it to me. ‘Legislation can always be changed. It’s very hard to tear down a bridge once it’s up.’ So he built 180 or 170 bridges too low for buses… this is how you can shape a metropolis for generations.”
Moses built the NYC Metro state park, expressway and parkway systems. He wasn't a fan of blacks, puerto ricans and poor jews, and deliberately built highway bridges about 4 feet too low for busses to pass, to keep "undesirables" out of Long Island beaches. This was also motivated by the attitude on Long Island, where the KKK was a major force at the time.
There's no core principles around business, and particularly at the intersection of business and local government. Realpolitik rules the day.
In terms of redlining, here's a great starting point about the city that I grew up in: http://alloveralbany.com/archive/2017/02/16/albany-redlining...
Key quote to ponder:
> "Yet New Deal housing policy also underwrote racial discrimination. The FHA refused to guarantee mortgages in neighborhoods that were under the threat of "infiltration" by black, Hispanic, or foreign families. This policy remained in force until 1950.
Although the HOLC wound down its operations in 1951, its legacy long outlived it in the form of redlining maps. Between 1935 and 1938, HOLC consulted with realtors, builders, and bankers in cities around the country. Until the passage of fair housing and fair lending laws in the 1970s, these maps (and later versions of them drawn up by local lenders) determined where mortgage money went -- and to whom."