Two different point coverages were created that contained points oriented in both directions. Those arcs that were deemed too long were assumed to represent street segments with sharp bends or meandering curves. There now existed four coverages representing unnamed, oriented arcs and named, oriented points as shown in Figure 4. Street segments and points parsed by orientation Now, with orientation segmentation complete for all unnamed segments, near was run with a relatively large search radius of 70 feet on the directionally oriented paired arc and point coverages. These methods resulted in a street center line coverage with approximately 88 percent of the street segments named.
Work is underway to assign street name attributes to the remaining major arcs manually.