ryan johnson up 206 midterm presentation february 8, 2011
TRANSCRIPT
The LA River and Opportunities to Address Lack of Park Access
Ryan JohnsonUP 206
Midterm PresentationFebruary 8, 2011
Park Access in Los Angeles2004 Trust for Public Land survey of 50 largest
cities in the US: LA has lowest per-capita green space.
Los Angeles ranks 11th of 12 major cities with 7.8% of total land area in parks, compared to San Diego with 22%, San Francisco with 19.3%, and New York with 19.1%.
More than 70% of Angelenos lack park access within one-quarter mile of home.
Sources: www.larivermp.org, www.tpl.org, www.virtualtripping.com
Project QuestionsWhere in the San Fernando Valley, near
undeveloped portions of the LA River, do particularly large gaps in walk-able park access exist?
Do residents in these communities have access to personal vehicles?
In which neighborhoods does river revitalization have the most potential to benefit a large number of residents?
Photo: http://latimesblogs.latimes.com
Public Space in the San Fernando Valley
Vehicle Ownership
Poverty & Density in Canoga Park
Youth Population in West SFV
Future ResearchWhere can River Revitalization occur that
will best address lack of park access for Angelenos?i.e., can creating green space along portions of
the River compensate for the absence of parks in a neighborhood?
Can I get an inventory of available lots that could be developed on/near the River?
What does the City’s zoning allow in the most park-poor locations along the River?
I’ve got skills…they’re multiplyin’ Inset Map
Slide 4 Buffering
Slides 4-7: One mile around LA River & 0.25 miles around Parks Attribute sub-set selection
Slides 4-7: Created new “LA River” shapefile by querying for “los angeles river” in the LA County Rivers file and exporting the result as a new shapefile
Boundary sub-set selection Slide 5: Selected by feature to create a separate shapefile of tracts that
intersected the LA River buffer, then exported this new selection as a shapefile Geoprocessing
Clipping- Slide 5: Clipped the newly created boundary sub-set of census tract layers intersecting
the LA River buffer to show car ownership in tracts only within or adjacent to the buffer Slide 4: LA County & Cali Detail
Graduated Symbols Slides 5,7