ABSTRACT
Subdivisions following that design approach were intended to create a park-like setting with graceful, curving streets and, more importantly, with a clear separation between local residential traffic and through traffic. If the streets in a grid system are undifferentiated, each one has the potential of becoming a high-volume traffic carrier. A word of caution concerning superblocks that incorporate residential areas which directly abut parks or common greens that are accessible to the general public: In three California communities that have used this design feature, most of the adjacent residents strongly dislike it. The grid system of roads has been continued, sometimes based on the old public land survey boundaries, and sometimes independently from it. The radial street system, in its theoretical form, consists of a number of access streets radiating from the head of a collector street; the foot of the collector street connects with an arterial street.
