I'm sure you all are familiar with the failure the conventional "
cul-
de-sac"
neighbourhoods, but this is a nice refresher article on how traditional grid
neighbourhoods (such as downtown) are much safer than new "conventional"
neighbourhoods. The key the connectivity of the
neighbourhoods to promote "location efficiency" - a neat concept.
http://www.theatlanticcities.com/design/2011/09/street-grids/124/Enjoy,