Subdivision Activity

The subdivision activity layer represents those areas (within unincorporated areas) with cases that are either pending, approved or recorded (within the past few years) within the Los Angeles County subdivision process.  Updated 4/30/13 for an annexation in Santa Clarita (recorded 4/16/13).

 Data can be downloaded here:

For more complete information, see Title 22 (Planning and Zoning) of the Los Angeles County Code, or stop by the office of the Los Angeles County Department of Regional Planning, Room 1360 Hall of Records, 320 [...]]]>  This is zoning for the unincorporated areas of Los Angeles County.

For more complete information, see Title 22 (Planning and Zoning) of the Los Angeles County Code, or stop by the office of the Los Angeles County Department of Regional Planning, Room 1360 Hall of Records, 320 W. Temple St., Los Angeles, CA 90012. Phone: (213) 974-6411. (Note: Citations which follow refer to sections within the Zoning Ordinance).  LAST UPDATED 4/30/13 to account for recent annexation to the City of Santa Clarita (recorded 4/16/13).  PLEASE NOTE, Santa Catalina Island is not included in this dataset.  It is in a seperate data layer since Catalina has specific zoning categories that differ from the Countywide zoning categories found in Title 22. 

Data can be downloaded here:

• Download Shapefile / Layer File (.zip)
• KMZ file

This data depicts generalized land use classifications, each of which is intended to describe the dominant use characteristics within the area covered. Updated information regarding public parks, school sites, freeways, rail/transit lines, and other ownership-specific boundaries have been incorporated into this data. The actual use and intensity of development that may be [...]]]>

This data depicts generalized land use classifications, each of which is intended to describe the dominant use characteristics within the area covered. Updated information regarding public parks, school sites, freeways, rail/transit lines, and other ownership-specific boundaries have been incorporated into this data. The actual use and intensity of development that may be allowed on private property within any given land classification is determined by a review of policy maps, other mapped and written policies of the General Plan, and the underlying zoning classification.  Updated 4/30/13 for annexation to the city of Santa Clarita (recorded 4/16/13).

Areas included:

• Altadena Community Plan
• Antelope Valley Area Plan
• Catalina Island Land Use Plan
• Local Coast Plan (Malibu – Santa Monica Mountains)
• East Los Angeles Community Plan
• Hacienda Heights Community Plan
• Marina Del Rey Land Use Plan
• Rowland Heights Community General Plan
• Santa Clarita Valley Area Plan
• Santa Monica Mountains North Area Plan
• West Athens / Westmont Community Plan
• Walnut Park Neighborhood Plan

For more information about adopted plans (including a complete list) – click here.  Legend info can be found here as well – click here.

Data can be downloaded here:

• Download Shapefile / Layer File (.zip)
• Download Layer Package (.zip)

Rural Outdoor Lighting District (Dark Skies)

This project is an amendment to Title 22 of the County Code, Planning and Zoning, to establish a Rural Outdoor Lighting District for areas of unincorporated Los Angeles County. The proposed Ordinance will establish the District with regulations that will conserve energy and resources and [...]]]>

Rural Outdoor Lighting District (Dark Skies)

This project is an amendment to Title 22 of the County Code, Planning and Zoning, to establish a Rural Outdoor Lighting District for areas of unincorporated Los Angeles County. The proposed Ordinance will establish the District with regulations that will conserve energy and resources and promote dark skies for the enjoyment and health of humans and wildlife, while permitting reasonable uses of outdoor lighting for nighttime safety and security. The regulations include limitations on allowable light trespass, fully shielding outdoor lighting, and imposes maximum heights of fixtures. The draft ordinance includes requirements for street lighting in rural areas, outdoor recreation facilities and signs. The draft map depicts areas located within the proposed District.

For more information contact the Ordinance Studies Section or go to Rural Outdoor Lighting District Ordinance.  For more information about adopted plans (including a complete list) – click here.  UPDATED on 4/30/13 to include annexation to the City of Santa Clarita (recorded 4/16/13)

Data can be downloaded here:

Download Shapefile (.zip)

These districts were established when zoning was created for Los Angeles County many years ago. It was a way to break the county up into distinct areas, smaller units, for easier record keeping and organization. It is still in use to identify and keep track of those ordinances and for running queries [...]]]>

These districts were established when zoning was created for Los Angeles County many years ago. It was a way to break the county up into distinct areas, smaller units, for easier record keeping and organization. It is still in use to identify and keep track of those ordinances and for running queries against permits and ordinances.  For a list of zoned districts or for other information on these districts, please refer to County Code 22.16 Zoned Districts and Maps.  Updated 4/30/13 for an annextaion to the city of Santa Clarita.

Data can be downloaded here:

• Download Shapefile (.zip)
• KMZ file

Office of Statewide Health Planning and Development (OSHPD) is the agency in the state of California that licenses hospitals and clinics.  Every year, this office generates a list of hospitals and clinics as well as reports that are based on the information submitted by the individual facilities.  Hospital Annual Disclosure Report and Hospital Annual [...]]]>

Office of Statewide Health Planning and Development (OSHPD) is the agency in the state of California that licenses hospitals and clinics.  Every year, this office generates a list of hospitals and clinics as well as reports that are based on the information submitted by the individual facilities.  Hospital Annual Disclosure Report and  Hospital Annual Utilization Report are couple of the most widely known and used reports.

How the data was created

Los Angeles County Hospital List is created annually by the Office of Planning and Data Analytics based on the OSHPD Hospital Annual Financial Disclosure Report and OSHPD Hospital Annual Utilization Report.

Download the Data

Los Angeles County Hospitals List (zipped shapefile):  LAC_HOSPITALS_2011

PDF map is showing LAC+USC Medical Center Emergency Department Patients and Profit and Nonprofit hospitals in Los Angeles County: LACUSCED1011a

The Department of Health Services (DHS) provides acute and rehabilitative patient care, trains physicians and other health care clinicians, and conducts patient care-related research. DHS operates 4 hospitals, including some of the nation’s premiere academic medical centers through their affiliations with the University of Southern California School of [...]]]>

The Department of Health Services (DHS) provides acute and rehabilitative patient care, trains physicians and other health care clinicians, and conducts patient care-related research. DHS operates 4 hospitals, including some of the nation’s premiere academic medical centers through their affiliations with the University of Southern California School of Medicine, UCLA School of Medicine and the Charles R. Drew University of Medicine and Science. While our hospitals provide Emergency Room,  Inpatient, Urgent Care, and Outpatient services,  our 2 Multi-Service Ambulatory Care Centers (MACC) provide Urgent Care, Specialty , and Outpatient services. The 6 comprehensive health centers and 11 health centers throughout the Los Angeles County, many in partnership with private, community-based clinics provide Urgent Care and Outpatient services.

Our organization is responsible for providing health services to all Los Angeles County residents and this list provides the locations of all the DHS facilities.

How the data was created

The DHS Facility List is updated annually by the Office of Planning and Data Analytics.

Download the data

Department of Health Services Facilities List (zipped shapefile):  DHS_HEALTH_SERVICES_FACILITIES_2011

PDF map is showing Service Planning Areas  and Department of Health Services Facilities Locations: DHSsites2011

The Digital Surface Model was acquired using LIDAR (Light Detection And Ranging), which used a laser mounted in planes that were acquiring 4-inch orthophotography data.  Hundreds of millions of ground measurements were made using this system, which makes it extremely accurate.  This source [...]]]> 2 foot contours acquired as part of the Los Angeles Regional Imagery Acquisition Consortium in 2006.

The Digital Surface Model was acquired using LIDAR (Light Detection And Ranging), which used a laser mounted in planes that were acquiring 4-inch orthophotography data.  Hundreds of millions of ground measurements were made using this system, which makes it  extremely accurate.  This source was used for urban/suburban areas of the County in mainland (approximately 2,898 square miles) and Catalina Island covering approximately 75 square miles, while for the National Forest contours were created using stereo compilation.

This dataset meets or exceeds ASPRS (American Society for Photogrammetry and Remote Sensing) 1:100 scale mapping.  Accuracy is within +/- 2 feet of true location with 95% confidence.

Detailed product information is contained in the LAR-IAC Product Guide.

We highly recommend that you visit the LAR-IAC Project Website to find a rich source of information about the data and the LAR-IAC program.  The site includes project documents, full FGDC compliant metadata, data downloads of related GIS used to complete the project, sub-licensing information, sample imagery and data, and information about the 2006 acquisition.

GIS Data showing flight-date information is available from the LAR-IAC Project website site, and elsewhere in the LA County GIS Data Portal.

The imagery is held under license from InfoTech International, and cannot be publicly released.  Government entities are eligible to join the LAR-IAC program to access the data.  Private entities may contact InfoTech directly to purchase selected parts of the data.

Data Access

Please note that this data is not available to the public.  The USGS has a public, 10 foot  foot version of the Digital Elevation Model

For County staff only, use the layer file below, which has symbology and data access:

• LAR-IAC Contours (2006) – ArcGIS 10.1 layer file

Samples

About LAR-IAC

The Los Angeles Region Imagery Acquisition Consortium (LAR-IAC) Program is a collaborative acquisition program for digital aerial imagery data which has included the participation of 10 County departments, 30 municipalities, and four other public agencies.

The consortium is a model for regional cooperation that improves the quality, access, and cost-effectiveness of high resolution digital aerial imagery. Knowledge transfer is increased through consortium program meetings, user groups, and various workshops that have been established in conjunction with the project. The imagery acquired will enable all participating jurisdictions to leverage this key geographic information asset for numerous decision support and business applications, thereby facilitating the effective and efficient delivery of services.

Purchasing LAR-IAC data

Government agencies acquire LAR-IAC elevation data only through the County consortium.  Private companies can acquire LAR-IAC data as part of a project they are working on with a LAR-IAC consortium member, or by contacting the original data vendor, Infotech. Contact information is here:

Srinu Ratnala
Project Manager – N & CE
Infotech Enterprises America, Inc
100 Carpenter Drive, STE 200,
Sterling, VA – 20164
Tel  : + 1 (571) 313-1065 Ext: 129
Cell : + 1 (703) 401-6586
E-mail : Srinu.Ratnala@infotech-enterprises.com
www.infotech-enterprises.com

Congratulations to Scott Gregory (GIO of California) and his team – it’s a great start!

My quick takes:

Some features of the GIS-NET3 application:

USGS Earth Explorer

This dataset represents natural color, leaf-off, 1 foot high-accuracy orthorectified aerial imagery, acquired by the Los Angeles Regional Imagery Consortium (LAR-IAC) in winter 2010/2011, and made public with the partnership of the US Geological Survey (USGS). The DEM represents bare earth, whereas a related product (DSM) contains elevations and includes buildings, [...]]]>

USGS Earth Explorer

This dataset represents natural color, leaf-off, 1 foot high-accuracy orthorectified aerial imagery, acquired by the Los Angeles Regional Imagery Consortium (LAR-IAC) in winter 2010/2011, and made public with the partnership of the US Geological Survey (USGS).  The DEM represents bare earth, whereas a related product (DSM) contains elevations and includes buildings, vegetation, and roads, as well as natural terrain features, whereas .

This data was down-sampled from the 4-inch orthophotography created as part of LAR-IAC.  Detailed product information is contained in the LAR-IAC Product Guide.

To get this data, you can do one of the following:

Use either the National Map Viewer (nationalmap.gov/viewer) or the EarthExplorer (EarthExplorer.usgs.gov) sites to access this data.

If you have questions please contact the US Geological Survey Representative at the bottom of this page (Drew Decker).

About LAR-IAC

We highly recommend that you visit the LAR-IAC Project Website to find a rich source of information about the data and the LAR-IAC program.  The site includes project documents, full FGDC compliant metadata, data downloads of related GIS used to complete the project, sub-licensing information, sample imagery and data, and information about the 2006 acquisition.

National Map

The Los Angeles Region Imagery Acquisition Consortium (LAR-IAC) Program is a collaborative acquisition program for digital aerial imagery data which has included the participation of 10 County departments, 30 municipalities, and four other public agencies.

The consortium is a model for regional cooperation that improves the quality, access, and cost-effectiveness of high resolution digital aerial imagery. Knowledge transfer is increased through consortium program meetings, user groups, and various workshops that have been established in conjunction with the project. The imagery acquired will enable all participating jurisdictions to leverage this key geographic information asset for numerous decision support and business applications, thereby facilitating the effective and efficient delivery of services.

The Public Land Survey System (PLSS) typically divides land into 6-mile-square townships, which is the level of information included in the National Atlas. Townships are subdivided into 36 one-mile- square sections. A section is an area normally [...]]]> The grid that shows the township, range and section information for Los Angeles County taken from the PLSS.

The Public Land Survey System (PLSS) typically divides land into 6-mile-square townships, which is the level of information included in the National Atlas. Townships are subdivided into 36 one-mile- square sections. A section is an area normally one mile square, containing 640 acres(2.6 km²). Sections can be further subdivided into quarter sections, quarter-quarter sections, or irregular government lots. Normally, a permanent monument, or marker, is placed at each section corner. Source: U.S. Department of the Interior / Bureau of Land Management / Public Land Survey System; last update: 2007.

PLSS Illustration:

Illustrated by The National Atlas of the United States of America® of the United States Department of the Interior

Data can be downloaded here:

Download Shapefile (.zip)

The runways include all paved and access tarmacs to the flight lines.

Download

lacounty_airport_runways (zipped shapefile).

Significant Ecological Areas (SEA)

Significant Ecological Areas (SEA) Significant Ecological Area (SEA) means an area that is determined to possess an example of biotic resources that cumulatively represent biological diversity for the purposes of protecting biotic diversity, as part of the Los Angeles County general plan or the city’s general plan. Additional [...]]]>

Significant Ecological Areas (SEA)

Significant Ecological Areas (SEA) Significant Ecological Area (SEA) means an area that is determined to possess an example of biotic resources that cumulatively represent biological diversity for the purposes of protecting biotic diversity, as part of the Los Angeles County general plan or the city’s general plan. Additional regulations shall be applied based on County Code 22.56.215: Hillside management and significant ecological areas — Additional regulations.More information about the County’s SEA Program can be found at:  http://planning.lacounty.gov/sea/

Data can be downloaded here:

• Download Shapefile (.zip)
• KMZ file

The grid that shows the zoning maps that cover the unincorporated areas of Los Angeles County.  This grid follows alignment and numbering system as the Department of Public Works House Numbering Maps.  This was developed as part of the Zoning Map Conversion and Integration Project (ZCIP) – 2002 to 2006. 

UPDATED on [...]]]>

The grid that shows the zoning maps that cover the unincorporated areas of Los Angeles County.  This grid follows alignment and numbering system as the Department of Public Works House Numbering Maps.  This was developed as part of the Zoning Map Conversion and Integration Project (ZCIP) – 2002 to 2006. 

UPDATED on 1/8/13 to include annexation to the City of Santa Clarita (recorded 11/28/12)

Data can be downloaded here:

Download Shapefile (.zip)

Countywide layer which divides the County of Los Angeles into 11 Planning Areas. These area divisions were created for the LA County Dept. of Regional Planning by the GIS Section under direction from the General Plan Development Section. Reflects the most recent changes from the [...]]]> For planning purposes & reference within the General Plan Update.

Countywide layer which divides the County of Los Angeles into 11 Planning Areas. These area divisions were created for the LA County Dept. of Regional Planning by the GIS Section under direction from the General Plan Development Section. Reflects the most recent changes from the General Plan update (revision 5–December, 2011). 

UPDATED on 1/8/13 to include adjustment of City boundaries in the Los Angeles / Long Beach Harbor areas (using linework from Public Works)

Download the files at the hyperlinks below:

Download Shapefile (.zip) 

Planning Areas

Data can be downloaded here:

 This is the boundary of Los Angeles County including Santa Catalina Island and San Clemente Island. Does not include incorporated city boundaries.  Last updated 1/9/13 to include boundary modification in Los Angeles / Long Beach Harbor area (used DPW linework to adjust shorelines)

• Download zipped shapefile

Current version – January 1, 2013

This layer contains Legal City boundaries (as opposed to Postal City) within L.A. County. The boundaries will not line up with the Thomas Brothers city layer.

Download Data

Link to DPW GIS Data Site:  http://dpw.lacounty.gov/general/spatiallibrary

Contains precincts from the Los Angeles County Registrar/Recorder’s Office. The Registrar/Recorder uses these precincts to run elections by grouping them into election precincts, so they capture the boundaries of all voting districts in the County, including, but not limited to:

Airports (Countywide)

Data can be downloaded here:

DRP_RIDGELINES (zipped shapefile)

Significant Ridgelines

Data can be downloaded here:

Download Shapefile / .zip

The community standards districts are established as supplemental districts to provide a means of implementing special development standards contained in adopted neighborhood, community, area, specific and local coastal plans within the UNINCORPORATED areas of Los Angeles County, or to provide a means of addressing special problems which are unique to certain geographic [...]]]>

The community standards districts are established as supplemental districts to provide a means of implementing special development standards contained in adopted neighborhood, community, area, specific and local coastal plans within the UNINCORPORATED areas of Los Angeles County, or to provide a means of addressing special problems which are unique to certain geographic areas within the unincorporated areas of Los Angeles County. For detailed development standards for each CSD, please refer to County Code 22.44 Part 2.  Last Updated 9/22/11 – Stonyvale CSD.  Modified on 10/22/12 for an annexation in Palmdale.

This also includes the CSD Subareas layer (specific development standards areas within CSD boundaries).

Data can be downloaded here:

• Download Shapefile / Layer File (.zip)
• KMZ file

Significant Environmental Resource Areas

Sensitive Environmental Resources (SERA) – Coast Zone Only

These are in the Coastal Zone area only, and they afford the highest protection from future land development due to their environmental signifigance and sensitivity. ESHA’s [...]]]>  

Significant Environmental Resource Areas

Sensitive Environmental Resources (SERA) – Coast Zone Only

These are in the Coastal Zone area only, and they afford the highest protection from future land development due to their environmental signifigance and sensitivity. ESHA’s have the most restricction to development (only resource dependent uses allowed), and the remaining categories allow some development but with additional review from the Environmental Review Board. Please click here for the 1986 Malibu Land Use Plan; a description of SERAs and ESHAs begin on page 27 of the PDF, and a table listing permitted uses begins on page 75 of the PDF. Source: Malibu Local Coastal Plan; last update: 1986 (plan adopted).

Data can be downloaded here:

• Download shapefile & layer file (.zip)

The Los Angeles County Registrar/Recorder establishes polling locations for each election. Each election has [...]]]> Polling locations assigned for the November 6, 2012 Presidential election as of October 31, 2012.  Note – these polling locations are subject to change.  Changes occur when polling locations become unavailable at the last minute, or for a variety or reasons.

The Los Angeles County Registrar/Recorder establishes polling locations for each election.  Each election has a unique set of polling locations.  These polling locations are not applicable for future elections.

Download the data

November 2012 Polling Locations (zipped shapefile)

I wanted to place this here while I attempt to contact them and gather an ongoing transfer of information to make the data available in raw [...]]]> The Institute for Spatial Economic Analysis (ISEA) at the University Redlands provides monthly updates of job growth for California.  These are estimates but the maps are valuable.

I wanted to place this here while I attempt to contact them and gather an ongoing transfer of information to make the data available in raw form.

Go the the ISEA website

Note, this is not a link to GIS data layers, just Adobe Acrobat PDF files. For GIS data, i.e., ESRI Shapefiles, search [...]]]> Various maps are available for free as downloads (PDF files) or as hard copy prints for a fee. Available maps include Supervisorial Districts, Community Standards Districts (CSD), Zoning, Community and Area Plans, etc.

Note, this is not a link to GIS data layers, just Adobe Acrobat PDF files. For GIS data, i.e., ESRI Shapefiles, search this LA County GIS Data Portal with the search window or browse through the categories to the left.

http://planning.lacounty.gov/gis/maps

These boundaries are legally accurate as specified by the Los Angeles City Bureau of Engineering.

Download

Download the shapefile (includes sample layer file): LA_City_Council_Districts_2012 (zipped shapefile).

Click here to go to the Santa Monica GIS Data Page

Address Points

Current data date: June 2012 – we will be releasing new versions of this data periodically.

This dataset contains address points from the Countywide Address Management System, a collaborative program between the County’s Registrar/Recorder, Chief Information Officer, Public Works Department, Department of Regional Planning, and many local cities [...]]]>

Address Points

Current data date: June 2012 – we will be releasing new versions of this data periodically.

This dataset contains address points from the Countywide Address Management System, a collaborative program between the County’s Registrar/Recorder, Chief Information Officer, Public Works Department, Department of Regional Planning, and many local cities to manage addresses and street centerlines for the purposes of geocoding and cartography.

What this data is (and isn’t)

This dataset contains the best available information, with close to 3 million primary and secondary addresses in the County of Los Angeles.   It does NOT include information about every unit, suite, building, and sub-address.  With probably over 7 million addresses, we have a ways to go.

Description

This dataset includes over 2.9 million individual points for addresses in the County.  Data has been compiled from best available sources, including city databases, LA County Assessor parcels, and the County’s House Numbering maps.  Please see the Source field for information.

Street Name information has been split into multiple fields to support the County’s specifically designed geocoders – please see the entry on LA County Specific Locators and Matching rules for more information.

Multi-address Parcels

Some of our data sources (LA City, LA County, for example) have mapped each individual address in their city.  These may also show unit information for an address point.  A property with multiple addresses will show a point for each address.  For some cities where this has not happened, the data source is the Assessor, where the primary address of the property may be the only address shown.  We invite cities and sources with more detailed information to join the CAMS consortium to continue to improve the data.

Legal vs. Postal Cities

Many users confuse the name the Post Office delivers main to (e.g. Van Nuys, Hollywood) as a legal city (in this case Los Angeles), when they are a postal city.  The County contains 88 legal cities, and over 400 postal names that are tied to the zipcodes.  To support useability and geocoding, we have attached the first 3 postal cities to each address, based upon its zipcocode.

For a full list of zipcode to postal city correlations, see this file: zipcodexxpostalcities (zipped .dbf file)

Download the data

•  Data Download in ESRI Shapefile Format (123 Mb): lacounty_address_points.zip (zipped shapefile)

natgrid_100m_mj100k

natgrid_100m_mt100k

natgrid_100m_lu100k

100 Meter National Grid for Los Angeles County

Layering

The US Geological Survey has made its standard topo maps available for download through The National Map Viewer. NOTE – through research I have found that the USGS topo Store is a better place to go to download the maps. Click here to go to the store

There are now in [...]]]>

Layering

The US Geological Survey has made its standard topo maps available for download through The National Map Viewer.  NOTE – through research I have found that the USGS topo Store is a better place to go to download the maps.  Click here to go to the store

There are now in .pdf format, which is a digital file format which has a couple of unique capabilites:

1. Layers can be turned on and off – see the snapshot to the right.
2. There is an ortho image behind the map now (that’s cool)
3. I believe there are some very cool tools within a plugin for Acrobat called “geo-pdf” which adds GIS capabilities.

Pasadena Quad

US Topo is the next generation of digital topographic maps from USGS.  Arranged in the traditional 7.5-minute quadrangle format, digital US Topo maps are designed to look and feel like the traditional paper topographic maps for which the USGS is so well known. At the same time, US Topo maps provide modern technical advantages that support wider and faster public distribution and enable basic, on-screen geographic analysis for all users.  US Topo maps are available free on the Web. Each map quadrangle is available as a GeoPDF® file created from key layers of geographic data – orthoimagery (2010 NAIP), roads, geographic names, contours, and hydrographic features – found in The National Map, which is a nationwide collection of integrated data from local, state, federal, and other sources.  The National Map data layers make up the US Topo products and much of these data are available for download through The National Map Viewer (nationalmap.gov/viewer).  Stay tuned for additional emails soon from us about these digital resources (data download and consumable map services).

Note that California also played a significant role in developing end user requirements for the US topo.  There were a number of interviews and workshops that took place across the state in 2008 and 2009.  These gathered information from many of you as private sector, educational, and local, state, and federal government customers on the direction for future USGS mapping products and services – including US Topo.

The US Topo News Release refers to the USGS Store at the place to go for the new maps.  Visit the USGS Store site at store.usgs.gov.  Then click on the “Map Locator & Downloader” in the center of the page.  From there you can locate your favorite maps in CA by searching by map or place name or by pan/zoom on the viewer.  Maps are available as GeoPDF® files for free download.  Besides the map downloads at the Store, we have lots of information on US Topo and related products.

1. US Topo information is online at
http://nationalmap.gov/ustopo/        (main page)
http://pubs.usgs.gov/fs/2009/3108/      (fact sheet)

2. A Users Guide to US Topo and other USGS GeoPDF® products is available here:
http://nationalmap.gov/ustopo/quickstart.pdf

3. There is a good FAQ section too.  It has information for queries such as bulk data downloads (Q2 under Product Access and Download ) and GIS formats (Q6 under Product Use).  See:
http://nationalmap.gov/ustopo/faq.html

4. News items and tweets on the USGS National Geospatial Program are at
http://nationalmap.gov/tnm_news.html
http://twitter.com/#!/USGSTNM

5. We welcome your comments and suggestions about new US Topo maps.  Please submit comments online at
http://nationalmap.gov/ustopo/ustopo_feedback.html

While downloading US Topo maps and looking around the USGS Store. you will also notice that the digital historical topographic maps for California are available.  We had announced the historical topo maps release before but this is a good time for a reminder.  The historical map collection includes over 13,700 historic maps across the state with some maps dating back over 100 years.  All published map scales are available, including: 7.5-minute (1:24,000), 15-minute (~1:63,000), 30-minute (1:100,000), and 1×2 degree (1:250,000).  For dataset needs that cover the entire state, please contact Carol or Drew.

Like with US Topo, we have lots of additional information on the historical map collection and the program that produced them.  For example:

1. Information about the USGS historical topographic map collection and the historical quadrangle scanning project can be found here:
http://nationalmap.gov/historical/     (main page)
       http://pubs.usgs.gov/fs/2011/3009/      (fact sheet)

2. We have a 19 minute video from the September 2011 International Map Trade Association Conference on distribution of USGS historical topo maps:
http://gallery.usgs.gov/videos/465

3.  See a press release on the historical topographic map collection.  The article is from late 2011 but provides good additional information on the project:
http://www.usgs.gov/newsroom/article.asp?ID=3024

This layer was developed by the Fire Department to use in our annual reporting to the state. We must report total incidents by Urban,Suburban, and Rural. Using the State of California formula for urban,suburban was found to be not applicable to Los Angeles County. The [...]]]> Download the shapefile  here: Urban Suburban Rural (zipped shapefile).

This layer was developed by the Fire Department to use in our annual reporting to the state. We must report total incidents by Urban,Suburban, and Rural. Using the State of California formula for urban,suburban was found to be not applicable to Los Angeles County. The state was using census tract to compute the USR and only using population. This worked for them as they had to look at the whole state by county. We used the following variables:

1. Total Population

2. Employment

3 Street miles

4. Housing

We then re-distributed the totals down to a one-mile grid. Then a scoring system for each variable was developed. One  being a low, and ten 10 being the highest. We then totaled up the scores for each category. What we found was that we needed to ‘smooth’  the results to ensure a smooth transition from urban,suburban, and rural. We found that using ESRI’s Neighborhood model was a perfect tool to finalize our results. We documented our methodology and asked the Urban Research Division of Los Angeles County to independently analyze our results. With some minor tweaking the USR layer was approved and is now used for all our reporting.

Download the zipped shapefile: Hosp_entry_pnts.zip

Download the zipped shape file: Los Angeles County Fire Hydrants

Background

The LA County Department of Mental Health provides mental health services through directly operated and contracted [...]]]> This dataset provides the locations of directly operated and contracted mental health providers, and also includes inpatient hospitals providing mental health services  as of November 2011.  It does not include information on individual names of clinicians.

Background

The LA County Department of Mental Health provides mental health services through directly operated and contracted providers.  Active directly operated and contracted mental health providers are located throughout all eight Service Planning Areas (SPAs) of Los Angeles County and employ staff able to speak a variety of languages. The mental health providers and related data include Psychiatric Inpatient and Outpatient facilities, Community Outreach, Forensic, Residential, and Specialized Foster Care facilities.

The Department of Mental Health Quality Improvement Division is dedicated to providing analytical and data support to the Mental Health Department, and supports a number of applications and data access resources for providers and the public.  For other data resources from the division, see the bottom of this entry.

How the data was created

A list of current providers was extracted from the Department of Mental Health Management Information System (MHMIS) by the Department of Mental Health Quality Improvement Division.  They were located using LA County’s geocoding resources.  Individual addresses that did not geocode were hand located using other resources such as Google and Bing Maps.

Information associated with these provider includes, Name, Address, Phone Number, Hours of Operation, Types of Specialty Mental Health Services (SMHS), Age Groups Served, Languages, Provider Number, Non-Governmental Agency (NGA) designation, SPA Maps, and Map Locator Number.

SPA Population Demographic Profiles are also included as an easy guide to basic information, such as number of clients served, Threshold Languages spoken (American Sign language included) in the SPA, number of providers, type, and geographic distribution of mental health services within each SPA.

Download the data

Mental Health Providers (zipped shapefile): DMH_Providers_20111123 (zipped shapefile)

pdf map showing Service Planning Area (2012) and Mental Health Povider Location

Other QI Data Resources:

• Home Page
• Community Resources Guide
• Mental Health Mapping Framework

Land Use Policy (1980 General Plan)

Referred to as the “General Plan” and encompasses the unincorporated areas (sometimes referred to as ‘islands’) not covered by a community, neighborhood or area plan.  Adopted by the Board of Supervisors on November 25, 1980.  Last Amended 4/30/12 for a Plan Amendment in Del Aire.

Each polygon contains a 8 digit number [...]]]> This dataset contains the dates of the imagery compiled into the 2011 Los Angeles Regional Imagery Acquisition Consortium 4-inch and 1-foot color orthophotography.  We are currently waiting for one final block to be added to this dataset (the National Forest north of Santa Clarita).

Each polygon contains a 8 digit number that corresponds to the date the image was acquired.  Over 350,000 individual image chips were merged to create a seamless orthophoto across the County of Los Angeles.  This dataset will enable participants and other entities to know  the date the image was acquired.

Processing History

This dataset was extracted from a larger polygon file (with 105,000 polygons) which contained the boundaries of the individual image chips that were merged into the final LAR-IAC product.  In order to reduce the size of the file, the boundaries were smoothed using the ArcMap generalize command to reduce the number of vertices, which reduces the file size while not dramatically impacting accuracy.

Samples

Download the data

• lariac3_dateflown.zip (22 Mb zipped shapefile that includes a layer file to help with symbology)
• LARIAC 3 Date Flown (2011).lyr (For County staff only – layer file that connects directly to the Enterprise GIS repository to show the data)

LA City Planning GIS Data Portal

The City of Los Angeles Planning department has launched a GIS Data Portal for downloading various GIS data files pertaining to City Planning information.

You can access the data by going to http://planning.lacity.org, selecting the Maps and Stats button on the left, then selecting the LADCP GIS [...]]]>

LA City Planning GIS Data Portal

The City of Los Angeles Planning department has launched a GIS Data Portal for downloading various GIS data files pertaining to City Planning information.

You can access the data by going to http://planning.lacity.org, selecting the Maps and Stats button on the left, then selecting the LADCP GIS Data. page.

I will also add this link to our LA County GIS Data Portal, (http://gis.lacounty.gov/dataportal), which contains links to County and other data like this.

Information includes:

1. Area Planning Commission Boundaries
2. Community Plan Areas
3. Zoning
4. General Plan Land Use
5. General Plan Circulation
6. Specific Plans
7. Other Districts
8. Historic Preservation Overlay Zones
9. Historic Cultural Monuments
10. Federal Renewal Communities
11. State Enterprise Zones
12. Business Improvement Districts
13. Targeted Neighborhood Initiatives