20240329
18451300
1.0
FALSE
diz_blockgroup
002
353296.963400
587409.349600
4336254.334900
4549238.081100
1
Projected
GCS_North_American_1983
Linear Unit: Meter (1.000000)
NAD_1983_UTM_Zone_18N
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20241113
11000000
20241122
10575700
150000000
5000
ISO19139
Version 6.2 (Build 9200) ; Esri ArcGIS 10.8.1.14362
Development Intensity Zones
1
-76.746463
-73.959264
41.094415
39.163145
The Development Intensity Zones (DIZ) geography as a block group-based assessment of existing development, largely formed from two analysis dimensions—density and proximity. Zones are classified from least to greatest development intensity
<DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN><SPAN>The Development Intensity Zones (DIZ) geography as a block group-based assessment of existing development, largely formed from two analysis dimensions—density and proximity. Zones are classified from least to greatest development intensity.</SPAN></SPAN></P><P><SPAN /><SPAN /><A href="https://github.com/dvrpc/development-intensity-zones/blob/main/images/image.png" STYLE="text-decoration:underline;"><SPAN><SPAN>https://github.com/dvrpc/development-intensity-zones/blob/main/images/image.png</SPAN></SPAN></A></P><P><SPAN>Protected zones are within block group-based geographies but are removed from density and proximity index calculations. DIZ also uses the presence of structures (i.e. housing units, commercial and industrial square footage) to calculate these indices. </SPAN><SPAN /><SPAN /><SPAN><SPAN>The DIZ covers the 9-county DVRPC region, along with surrounding counties for greater context beyond the region. </SPAN></SPAN><SPAN>The DIZ can be used for a variety of purposes. It provides simple classifications of the region’s areas by which data can be summed and analyzed. It can be used for policy applications, such as incentivizing where future growth or investment goes based on smart growth principles. It’s important to note that the DIZ classifications are based on the current presence of development, largely using housing units for residential intensity and commercial square feet for non-residential intensity. This captures used space and space with potential for use (vacant space) and the presence of infrastructure to build buildings, but if one’s analysis is more suited for the presence of people, other metrics such as population, households, and employment may be more appropriate. If future growth in development is desirable for one’s analysis, the DIZ does not capture that.</SPAN><SPAN /><SPAN /><SPAN><SPAN> For more information, see </SPAN><A href="https://github.com/dvrpc/development-intensity-zones/blob/main/methodology.md" STYLE="text-decoration:underline;"><SPAN>Methodology</SPAN></A><SPAN>.</SPAN></SPAN></P><P><SPAN>Version 1 release Sept. 2023</SPAN></P></DIV></DIV></DIV>
Delaware Valley Regional Planning Commission (DVRPC)
planning
diz
long range plan
<DIV STYLE="text-align:Left;"><DIV><P><SPAN>https://catalog.dvrpc.org/dvrpc_data_license.html</SPAN></P></DIV></DIV>
Feature Class
dataset
EPSG
6.13(3.0.1)
0
Simple
FALSE
0
TRUE
FALSE
diz_blockgroup
Feature Class
0
geoid
geoid
String
1073741822
0
0
density_index
density_index
Double
8
16
3
density_level
density_level
String
1073741822
0
0
proximity_index
proximity_index
Double
8
38
8
proximity_level
proximity_level
String
1073741822
0
0
prelim_diz_zone
prelim_diz_zone
Double
8
19
0
cw_dev_density
cw_dev_density
Double
8
38
8
prelim_diz_zone_plus_1
prelim_diz_zone_plus_1
Double
8
19
0
avg_stories
avg_stories
Double
8
38
8
percentile_50
percentile_50
Double
8
38
8
crosswalk_bonus
crosswalk_bonus
Integer
4
10
0
stories_bonus
stories_bonus
Integer
4
10
0
diz_zone
diz_zone
Double
8
19
0
diz_zone_name
diz_zone_name
String
1073741822
0
0
objectid
objectid
OID
4
10
0
Internal feature number.
Esri
Sequential unique whole numbers that are automatically generated.
dvrpc_reg
dvrpc_reg
String
1
0
0
shape
shape
Geometry
4
0
0
Feature geometry.
Esri
Coordinates defining the features.
st_area(shape)
st_area(shape)
Double
0
0
0
st_perimeter(shape)
st_perimeter(shape)
Double
0
0
0
20241122