Sorry, "dutch strategy" because the good burghers of Amsterdam, Rotterdam, etc. realised that although sailors have deplorable* morals, the burgher's prosperity depended upon having many sailors transiently around, so the burgher's solution was to create neighbourhoods catering to vice, with the idea that it would be tolerated there, and specifically there — far from the "good" neighbourhoods where their silk-skirted patent-leather-shod daughters hung out.
* we've already touched upon LaSalle(?)'s riposte to Bonaparte, right?
As a side effect you may observe that PhD cred'd professional designers (architects) are about as rare as nonsocialist(?) "Democratic Republics" (DRC?)
https://news.ycombinator.com/item?id=42502659
(Why did you call this dutch strategy, did Dijkstra use it? Ah you mean the oudekerk? Straathoertje?)