Questions tagged [tiger]
Topographically Integrated Geographic Encoding and Referencing (TIGER) is a series of spatial data releases managed by the US Census Bureau. Many of its smaller area geographic divisions known as Census tracts and blocks are used as a standard in spatial analyses.
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Changing unit of measure from degrees to meters in QGIS?
I am running QGIS 1.7.0 on windows, and I donwloaded a shapefile of census block group boundaries from TIGER. This file appears to be in the WGS 84 coordinate system, and when I open it in QGIS the ...
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How fast should I expect PostGIS to geocode well-formatted addresses?
How fast should I expect PostGIS to geocode well-formatted addresses?
I've installed PostgreSQL 9.3.7 and PostGIS 2.1.7, loaded the nation data and all states data but have found geocoding to be much ...
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2
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Geocode quality: Nominatim vs. PostGIS Geocoder vs. Geocoder::US 2.0
I occasionally need to geocode >> 500,000 US street addresses (no features or intersections). I'd like to set up a geocoding service locally to handle these bulk geocodes.
I've used the Tiger-based ...
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1
answer
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Remove sliver gaps between polygons with R
Is there a way to eliminate the small "slivers" between polygons using R? The desired solution would create a new SpatialPolygonsDataFrame where the shared boundaries between polygons are coincident. ...
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How to reduce the file size of GeoJSON data?
For my project I am trying to convert the tiger shapefile information for us states into GeoJSON format
However when I use the ogr2ogr tool the data file is about 20 MB. I have seen the geoJSON file ...
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2
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Install PostGIS and TIGER Data in Ubuntu 12.04
Could someone write a brief albeit dumbed down idiot's guide to installing postgis and loading national Tiger data on ubuntu? I've tried a few guides, namely, http://wiki.bitnami.com/@api/deki/pages/...
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2010 Census Tiger County shp file with defined coastal land area
I am looking for a 2010 Census Tiger Shape file that hugs the coastline and doesn't include the ocean in county boundaries. I have a pre 2010 file that did this and I can't seem to find a 2010 ...
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US Tiger or OpenStreetMap route data: One Way Street and Intersection Data
We're building a U.S. street routing application (finding paths for cars between two or more locations using public roads) and would like to use open source data US Tiger Data or OpenStreetMap or ...
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3
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Obtaining same area values provided by Census for TIGER boundaries using PostGIS functions?
In PostGIS, how can I compute the area of Census Boundaries and obtain the same results as are provided by the Census?
For example, most Census Boundaries include attributes for Land Area and Water ...
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Displaying/feeding US census/tiger data into Google Maps API?
Let's say I want to display age, income, etc based on census block groups on Google maps.
How can I do this and also to allow simple queries?
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What is the highest resolution of population density data that I can obtain for USA freely?
Ok so as far as my understanding goes the most high resolution dataset available that factors in many other things (other than Census data ) at a 1X1 km resolution is Landscan data created by Oak ...
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Local geolocation to FIPS county using Latitude and Longitude
I have millions of lat,long pairs which I want to convert to FIPS county codes that match with the US census data. In the past I used the census block api but that is too slow for the amount of ...
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2
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Comparing TIGERLine 2006 (and prior) With New Shapefile Format
I have created a geo database using MySQL and the TIGERLine data files available from the US Census. This is actually an MSSQL database I created that I've transfered to MySQL. Everything works ...
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3
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Burning road network into DEM?
Does anyone have any suggestions for burning a road network into a DEM? I have a Python script written up for this executing this in ArcMap, but I would love to hear if anyone knows of any freely ...
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Is Tiger/Line 2010 Data Inaccurate? What's more reliable?
I followed the instructions at:
http://www.letseehere.com/postgis-geocoder-using-tiger-2010-data
To get postgres working with postgis, but some of the addresses are off 500 ft to as much as 1 mile in ...
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1
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in QGIS how to add (join?) another table to a layer
Very new so bear with me. I have QGIS loaded with a TIGER/Line Shapefile at the Block level for a County, and need to join other detailed CENSUS data various tables (which also have a Block ID to ...
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How is the "place" determined for this Tiger 2010 shapefile address record?
In most cases, an ADDR.DBF record links to an EDGES.DBF record that links to a FACES.DBF record that links to a PLACE.DBF record that contains the place. Sometimes, the place key in FACES.DBF is ...
6
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0
answers
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Customizing rules for Address Standardizer using PostGIS?
Following PostGIS documentation, I created a custom table for having different pagc_rules (also pagc_lex and pagc_gaz) so I can standardize/normalize addresses with different formats than the US where ...
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3
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Specification for US Census GEOID
I'm writing a program that needs to generate GEOID values from 2000 and 2010 Census data, to link the census data to TIGER/Line records. I'm starting with the state, county, region block, etc, values ...
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Filtering zip code shapefile by state/other zip code shapefiles?
I am looking to map one state based on zip codes (I have associated quantitative data that I am planning to join in QGIS).
I see that the Census TIGER shapefiles have an option for zip codes, but I ...
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votes
2
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Can't get Tiger Geocoder to work in PostGIS
I've installed the PostGIS Tiger Geocoder according to these instructions and loaded in data for the state of New York.
Unfortunately, when I try to geocode something...
ny_tiger=# SELECT g.rating, ...
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QGIS shapefiles have the same CRS but don't line up. (Census TIGER Data & State Data)
I have the Census TIGER data for Oregon from
http://www.census.gov/geo/maps-data/data/tiger-data.html
Then the bottom one of 2010 Census Population & Housing Unit Counts — Blocks.
The ...
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5
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Programming Tessellation in MATLAB and Using Map Data As Input
I'm very new to using map data. I'm working on a project on locating service terminals in a geographic region. Abstractly, given a simply connected region in the plane (for the purposes of what I'm ...
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4
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The shapes of the USA map
I'm newbie in GIS.
I want use the shapefiles of USA map for my Geoserver. Where can I download shapes for USA? I know about the TIGER\Line shapes but it is separate shapes of counties and thematic ...
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3
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Census.gov TIGER down, suggestions?
Census.gov is down for now. I have a friend who is a teaching a GIS class in the San Francisco bay area and only has so many datasets downloaded for specific projects. Does anyone have a large copy ...
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3
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Downloading multiple files from TIGER FTP site
Hello everyone! I've been downloading TIGER data per county from the FTP site one at a time, with some states having hundreds of files. I was curious if there was a faster way to download maybe all ...
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Extracting roads shapefiles from old TIGER/Line RT format?
Does anyone know how to extract a roads shapefile for the US Census circa 2000?
The only file I can find from US Census (e.g. https://www2.census.gov/geo/tiger/tgrcd108/CA/tgr06037.zip for Los ...
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Working around US Census site blocking of IP addresses?
I'm downloading TIGER data from the census site for the TIGER geocoder, but the computers IP has been blocked.
I'm trying the following now:
Generate the loader script on the target machine.
Copy ...
4
votes
1
answer
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Returning US Census geographies within range of coordinate using PostGIS and Tiger Decoder?
TL;DR:
How do I write a query in SQL (postgres, postGIS, tiger extension) that will return census geographies (blocks, tracts, zcta) within an X mile radius of a lat/lng coordinate?
Background:
I ...
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Anyone who has the ESRI Census 2000 Tiger/Line data?
The ESRI Census 2000 TIGER/Line Data were free.
http://www.esri.com/data/download/census2000-tigerline
http://arcdata.esri.com/data/tiger2000/tiger_download.cfm
But they vanished. The download link ...
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3
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Return GeoJSON from a Census Tract
I am working on a new project where I need to highlight census tracts by boundaries. Google Maps can do this as long as I give it GeoJSON (data layers).
I did some research and it seemed like Tiger ...
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TIGER/Line processing
Does anyone know of scripts for merging TIGER/Line shp files? It is for extracting the road features only, but for the whole of USA.
They are provided as shp files for one county at a time here:
http:...
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1
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Why GeoServer returns 404 response with coverage limits?
I have just installed GeoServer, but I'm geting some trouble getting it work. I'm doing some test with the examples provided on installation, specifically with tiger:tiger_roads. Despite I can get the ...
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1
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Finding census block for given address using Tiger geocoder
I have a geocoder based on Tiger/Line data running on PostGIS. I need to find census block for a given address. How can I do it?
Like I can do for census tract:
SELECT get_tract(ST_Point(-71.101375,...
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votes
1
answer
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Interpretation of PostGIS geocode function ratings
Edit: I am using Postgres 9.2 and recently installed PostGIS along with the Tiger Geocoder from the extras folder and downloaded all the latest Tiger data.
I have been testing the Tiger Geocoder ...
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4
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1
answer
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Best place to download or purchase shapefiles for Louisiana Parish?
I am looking for shapefiles to either download or purchase for the BEAUREGARD Parish in Louisiana. I have been able to find files for the Townships and Sections but I am in desperate need of a ...
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4
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1
answer
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Is there a public repository of common formating styles for QGIS? Specifically for Tiger data?
I have downloaded the Tiger data for a map I'm working on and wonder if there is somewhere I can download the common formatting styles for these shapes so I don't have to reinvent the wheel. For ...
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Is Sandy Springs, GA actually Atlanta, GA (ambiguous cities while geocoding)?
I installed postGIS and the associated TIGER geocoder for work, and noticed a strange thing when geocoding some addresses in the Atlanta area. For example, when I geocode the address "8610 Roswell Rd,...
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2
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Determining accessibility of U.S. street address
I'd like to determine whether a given U.S. street address is publicly accessible to vehicle/foot traffic. This would include addresses on both publicly and privately maintained roads that are not ...
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0
answers
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Normalizing addresses using PostgreSQL and PostGIS?
I am trying to geocode addresses in Hawaii using the PostGres/PostGIS with the 13.1. Tiger Geocoder. In Hawaii, many street addresses take the following format: ##-####. This is problematic with the ...
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Where can I get zip code shapefiles for years 2000 to 2010?
I've been searching the web for zip code shapefiles (or equivalents) for years 2000 to 2010, and have only managed to find the following:
http://www.icpsr.umich.edu/TIGER/index.html
which carries ...
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1
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How to upload TIGER shapefiles into MongoDB?
I have the school district shapefiles from TIGER for Michigan, from:
ftp://ftp2.census.gov/geo/tiger/TIGER2012/UNSD/
I'd like to use MongoDBs geoquery features to interrogate this data.
How do I ...
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5
answers
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Where can I find base data shapefiles for whole US?
I am looking for the base layers for whole U.S. - roads, hydrological lines etc with flexibilities of changing symbology and labels.
TIGER is a good source but it is at county level. I am running on ...
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Nation_script_load.sh asks for the DB password for each step
I'm loading TIGER geocoder data with the nation_script_load, during the process, I have to type the password several times. The same password that I set earlier along with the paths.
export ...
3
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1
answer
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Troubleshooting with Tiger for d3 -- is this the wrong projection? Why's it look like this?
UPDATE: Solved, sort of … I downloaded the file afresh and tried feeding it through ogr2ogr and topojson again … and wouldn't you know … after a while it worked. I think I was possibly not setting an ...
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How to improve poor performance times for PostGIS 2.1 Tiger Geocoder?
I've recently upgraded my PostGIS DB from 2.0 to 2.1. I initially followed the instructions from Waiting for PostGIS 2.1 - Install PostGIS Tiger Geocoder as an Extension and 2.7. Installing, ...
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Loading TIGER 2010 Edge Shapefile with ogr2ogr produces reversed Latitude and Longitude
I'm attempting to build a MySQL database that will allow me to reverse geo-code addresses using the MBR functions within MySQL. I've downloaded the latest set (2010) of TIGER edge shapefiles from the ...
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votes
1
answer
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Cannot generate nationscript.bat - Tiger Geocoder
I have been attempting to install tiger - geocoder in a postgres database. After muddling through examples and resources online for days I have been able to conjure up this much of the workflow.
I ...
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1
answer
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Inconsistent performance using the tiger geocoder.
I'm testing the geocoder results for one state, and I'm getting different results for directions that seem to be well formatted.
E.G.
Geocoding these addresses is taking around 100ms each:
280 ...
3
votes
1
answer
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How can I accurately split roads from the TIGER roads dataset, to create proper junctions in a network dataset?
I am trying to create a network dataset in ArcMap using the TIGER roads dataset. A problem with this dataset is that some road segments are not split at intersections. Therefor, network analyst would ...
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