The above map depicts the comparison of the level of completeness of the centerlines and TIGER road shapefiles for Jackson County, Oregon. From my numerical calculations, the centerlines data source is more complete, and this is reflected in the map, by there being more blue squares. This is important to determine which road network would be a better source for research. The map was created by joining a new field that measured the percent completeness of each grid square, and then creating a chloropleth map.
No comments:
Post a Comment