| description:
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This data set provides eight feature classes. The base feature class is called esri_tr and isn't generalized. The weighted centroids feature class is called esri_tr_cent. The centroids are weighted by the U.S. Block Centroids population distribution. Use the weighted centroids in report aggregation and spatial overlay operations. The esri_tr and esri_tr_cent feature classes contain all the attributes. There are six generalized boundaries feature classes and called: esri_tr_gen2, esri_tr_gen3, esri_tr_gen4, esri_tr_gen5, esri_tr_gen6 and esri_tr_gen7. Use the generalized boundaries when creating study areas. |