Hello,
I’m kind of new to this group and don’t know if this topic has been covered before or if there are other HPMS folks on this list.
This is a GIS technical question related to the population minimum of 2,500 for urban clusters and the population minimum of 5,000 for HPMS Small Urban Areas.
The TIGER/Line shapefiles for boundaries for Urban Areas will be available in Spring 2012. We plan to use these shapes (after smoothing) to do a GIS “clip” of the roads within them to determine HPMS Data Item #2, Urban_Code.
The HPMS Field Manual says that the Urban_Code value “is 99998 for small urban sections (not within the adjusted urbanized area and with an urban population of at least 5,000).”
So I assume there will be a way to identify the Urban Areas in the shapefile by population so that we can remove those shapes with population between 2,500 and 5,000 before we do our geoprocessing for HPMS. Is this correct?
Thanks!
Denise Hesselroth
HPMS Coordinator, Output/Support Unit
Data Systems & Coordination Section
Mn/DOT Office of Transportation & Data Analysis
395 John Ireland Blvd, MS 450
Saint Paul, Mn 55155
651-366-3852