Thanks for the responses! I will look into doing several versions to see what I can come up with. I like the idea of using alleyways and perhaps not using main streets as my circle but the back streets and more sublte avenues etc... Here is what I came up with just using main streets and making a bunch of connections but it is way too obvious in myu mind still.

I was trying to disguise the circles etc as parks and public areas, and add in more streets and connections to keep the geometric thing going, but adding more confusion to the layout. I think I will have to do another version and maybe hide several smaller circles through out the city that are connected somehow. A bit more low profile...

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