A system and process is presented that identifies nearby objects and/or
points in relation to a base object or point. An object or point is
nearby if it resides within a prescribed area around the base point. The
identification is based on information accessed from a database of
geometric data. The identification of nearby neighbors begins by dividing
the geographic system defined by said geometric data into a plurality of
zones. The zone in which each object or point resides and the zones
intersected by the prescribed area are determined. The nearby objects
and/or points of interest are then identified by initially considering
only those that are identified as residing in the zones intersected by
the prescribed area. The search for nearby neighbors can be further
refined by limiting the objects and/or points considered to those with
locations within the lateral extent and/or within the height of the
prescribed area.