Global urbanicity measurement machine and method
In a system and method for measuring global urbanicity, trapezoid shapes are built based on latitude/longitude boundaries using two different scales in two dimensions, thus yielding four different shapes/sizes of trapezoids. A multiplier is applied to adjust the count within a trapezoid to compensate for the fact that these trapezoids delineated by latitude/longitude lines will diminish in size as they approach the poles of the Earth. Census data is applied from a given country, and then summed up using an external data set pertaining to counts. Finally, the counts are rolled up into a set number of urbanicity “bands” or levels as desired for a particular application.
1. A computerized method for standardizing urbanicity for a region of different countries on a curved surface, the method comprising the steps of:
a. receiving from a computer-readable medium in communication with the one or more processors a set of map information, and constructing a plurality of shapes defined by latitude and longitude boundaries from the map information;
b. adjusting a count associated with each of the plurality of shapes to compensate for the latitude of the shape to produce an adjusted count;
c. calibrating census data from a country and applying the calibrated census data to the adjusted count;
d. applying an external population data set to the adjusted counts to sum up the adjusted counts;
e. rolling up each of the adjusted counts into one of a plurality of urbanicity bands, and applying one of the plurality of urbanicity bands to each of the plurality of shapes defined by latitude and longitude boundaries; and
f. identifying whether one of the plurality shapes contains a multi-unit dwelling, and if so split out address in the multi-unit dwelling to improve accuracy of the adjusted count of the shape that contains the multi-unit dwelling by reassigning urbanicity bands.
2. The method of claim 1 , wherein the plurality of shapes each comprise shapes in one of two different scales.
3. The method of claim 2 , wherein the plurality of shapes comprises a shape with a large vertical scale and a large horizontal scale; a shape with a large vertical scale and a small horizontal scale; a shape with a small vertical scale and a large horizontal scale; and a shape with a small vertical scale and a small horizontal scale.
4. The method of claim 3 , wherein the plurality of shapes comprise trapezoids.
5. The method of claim 1 , wherein the calibrating census data step further comprises the step of calculating a maximum population density from the plurality of shapes and a minimum population density from the plurality of shapes.
6. The method of claim 5 , further comprises application of a regression model to the adjusted counts to produce a raw population density.
7. The method of claim 1 , further comprising the step of applying the plurality of urbanicity bands to the shapes using centroid-based population data for the region.
8. The method of claim 1 , further comprising a step of eliminating all shapes corresponding to zero-population areas of the region prior to the step of summing up the adjusted counts.
9. A non-transitory computer-readable medium storing instructions to perform computerized method for standardizing urbanicity for a region of different countries on a curved surface, when executed by a computer, cause it to:
a. construct a plurality of trapezoidal shapes on the curved surface, wherein the trapezoidal shapes are defined by latitude and longitude boundaries;
b. adjust a count associated with each of the plurality of trapezoidal shapes to compensate for the latitude of the shape to produce an adjusted count;
c. calibrate census data from a country and apply the calibrated census data to the adjusted count;
d. apply an external population data set to the adjusted counts to sum up the adjusted counts;
e. roll up each of the adjusted counts into one of a plurality of urbanicity bands for each of the trapezoidal shapes; and
f. identify whether one of the plurality trapezoidal shapes contains a multi-unit dwelling, and if so split out address in the multi-unit dwelling to improve accuracy of the adjusted count of the trapezoidal shape that contains the multi-unit dwelling by reassigning urbanicity bands.
10. The non-transitory computer-readable medium of claim 9 , wherein the plurality of trapezoidal shapes each comprise one of two different scales in at least one dimension.
11. The non-transitory computer-readable medium of claim 10 , wherein the plurality of trapezoidal shapes comprises a shape with a large vertical scale and a large horizontal scale; a trapezoidal shape with a large vertical scale and a small horizontal scale; a trapezoidal shape with a small vertical scale and a large horizontal scale; and a trapezoidal shape with a small vertical scale and a small horizontal scale.
12. The non-transitory computer-readable medium of claim 9 , further comprising instructions that, when executed by a computer, calculate a maximum population density for the plurality of trapezoidal shapes and a minimum population density for the plurality of trapezoidal shapes.
13. The non-transitory computer-readable medium of claim 12 , further comprising instructions that, when executed by a computer, apply a regression model to the adjusted counts to produce a raw population density.
14. The non-transitory computer-readable medium of claim 9 , further comprising instructions that, when executed by a computer, apply the plurality of urbanicity bands to the shapes using centroid-based population data for the region.
15. The non-transitory computer-readable medium of claim 9 , further comprising instructions that, when executed by a computer, eliminate all shapes corresponding to zero-population areas of the curved surface.