The complementary nature of the synthetic O-D generation process and the trip distribution process is best demonstrated
in Table 1. Note that it is assumed that the zone connectors are dummy links, rather than actual streets or groups of
streets. Therefore they are not included in the synthetic O-D generation process as inputs. In contrast, if these zones
were well defined subdivisions, business or industrial parks, or shopping centers, the zone connectors could represent
actual or physical roads, and could therefore be counted, and included in the synthetic O-D generation process.