For what it&#x27;s worth, the London Underground has significantly less complicated interlocking patterns (with more transfers between trains instead).<p>Check out some of these crazy layouts, like the Dekalb area or the 47-63rd St map: <a href="http:&#x2F;&#x2F;www.nycsubway.org&#x2F;wiki&#x2F;New_York_City_Subway_Track_Maps" rel="nofollow">http:&#x2F;&#x2F;www.nycsubway.org&#x2F;wiki&#x2F;New_York_City_Subway_Track_Map...</a>