Population. Percent. Change in. Population. Maricopa. County. 3,082,477. 3,817,117. 23.83%. Phoenix. 1,321,045. 1,445,63
Sprawl Retrofit: Sustainable Urbanism in Unsustainable Places
Emily Talen Professor, Arizona State University Director, Phoenix Urban Research Lab
Geography
Maricopa County Phoenix Tempe Mesa Lightrail Corridor (LRC)* LRC - Phoenix LRC - Tempe LRC - Mesa
2000 Population
2010 Population
3,082,477
Percent Change in Population 3,817,117 23.83%
1,321,045 158,625 396,375 229,746
1,445,632 161,719 439,041 217,655
9.43% 1.95% 10.76% -5.26%
145,638
132,400
-9.09%
51,851 32,257
56,793 28,462
9.53% -11.76%
2010 C ensus Data Geography Maricopa County Phoenix Tempe Mesa Lightrail Corridor (LRC)* LRC - Phoenix LRC - Tempe LRC - Mesa
Total Dw elling Area (acres) DU per Acre Units (DU) 5,903,532.8 1,639,279. 0.3 338,560.0 590,528. 1.7 25,728.0 73,464. 2.9 85,203.2 201,478. 2.4 31,129.6 102,832. 3.3 20,538.4 63,816. 3.1 7,695.4 26,175. 3.4 2886.2 12,826. 4.4
9
Retrofit Plan
Retrofit pockets of urban potential target investment and code reform to neighborhoods that might become sustainable urban places
The zoning map of Phoenix: 264 zoning categories.
2 inputs for Retrofit Plan:
1. Find structural potential 2. Retrofit potential: density, diversity
Intersections per area
Average block perimeter
Text
Avg distance between intersections
Streets per mile
Best on all measures
Other indicators of potential
•
Areas already dense, diverse
• •
Multifamily zoning adjacent to SF zoning Mixed use – res parcels within 500 ft. of neighborhood businesses
Highest diversity by tract
Diversity/density variables
with potential centers
Final high priority areas
Retrofit
• identify center • zoning reform around center Density, mix, spatial definition
• connection – build connectivity to the center Streets and paths through existing dead space: • abandoned mall sites • parking lots • vacant lots • municipal owned lots
