What is the most efficient anno pax romana city layout for maximizing tax revenue?

[StormyHuda]

I’ve been experimenting with various grid designs, but I can’t seem to get the coverage right for the public baths and the colosseum. Does anyone have a blueprint for an anno pax romana city layout that effectively balances beauty with resource efficiency? I’m specifically looking for a way to cluster houses around service buildings without creating massive bottlenecks in the logistics and cart paths.

 

[Ragnar Lothbrok]

The problem is the 2x2 footprint of the houses versus the massive radius of the Colosseum. If you go with a standard 4x4 block of houses, you'll end up with dead space. Try a "Double Ring" layout: place your public bath in the center, then two rows of houses, then a circular road, then your market and Colosseum. It minimizes the walking distance for the tax-paying citizens.