First of all, I will say that I do not have training in urban planning, and I'm just beginning to do some research because it's fascinating to me.
I've had some ideas, I'd like to get some "expert" opinions:
I envision town centers being "rounder", with roads spiraling out or in concentric circles. I realize this is not as "efficient", meaning you may not get from Point A to Point B in the fastest amount of time, but it would definitely add a more human and more social aspect to walking around town. The grid system of laying out roads and properties is, well, very square. I'm sure we can improve on it. It may be efficient, but it's not very livable.
I'd really appreciate some feedback or even if someone could point me to resources about towns that are laid out in circles, or research regarding this subject.