One element that is often found or advocated in Traditional New Developments that try to construct a more humane form of suburbs are front porches.
The idea is that they will increase neighborliness, sociability, etc.
My experience in the Midwest was that in older houses that had porches the use was fairly minimal due to very inclement weather, provision of better entertainment indoor (TV, videogames, etc.) as well as 'cultural' factors.
Trying to avoid any generalized rants pro/con TNDs and NU, what do you think about including porches (aside from aesthetic considerations, that is)?