A study area defines the trade area boundaries that are analyzed in a report. Concentric radii around a site are unlimited in size and number. Sectors divide a study area into segments, like a pie that has been cut into pieces.
Polygons are areas that are defined by a series of line segments.
Polygons may have as few as three points or as many as several thousand. Polygons are most effective when a map of the study area is provided. Corridors are equal bandwidths on both sides of a line. Cuts are lines that subdivide a ring or polygon based on the proximity of competitor sites. Geographic Areas - states, counties, ZIP Codes, etc.