A GIS operation for converting street addresses into spatial data that can be displayed as features on a map, usually by referencing address information from a street segment data layer.

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19
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9answers
11k views

Bulk Geocode 20 million records

Are there any free or reasonably priced databases for the US which can be searched and return latitude and longitude information?
6
votes
1answer
4k views

How to create a point along a line given distance

I have been given a non-spatial database which contains the names of lines which I have a shapefile for. The database also has names of points and the distance of each point from the origin along the ...
16
votes
7answers
13k views

Is there an open source Geocoding tool which can be used commercially?

Is there any Geocoding tool which is open source and can be used in commercial application? We tried Google geocoding API's but cannot continue with it because of some licensing limitation. Now ...
14
votes
5answers
2k views

Advice on geocoding IP addresses

What is the best way of geocoding IP addresses? I have ~ 10,000 - 30,000 addresses to geocode once. The IP addresses are from all over the world and I only want the Long/Lat. Accuracy to the city ...
17
votes
10answers
20k views

Where can I obtain an up-to-date list of US ZIP Codes with Latitude and Longitude Geocodes?

NOTE: This began as a question on Stack Overflow, which has subsequently been closed. I also noticed a similar question about Most Up-To-Date Source for US Zip Code Boundaries, but I believe this ...
30
votes
11answers
2k views

USA geocoding that's anonymous, good, and free - does it exist?

For a one-time project, I need to geocode a few thousand addresses. In the past I've used various online resources for this kind of thing (e.g., Google Maps API), but the addresses I'm working with ...
10
votes
4answers
1k views

How would I create my own geocoding web service

I would like to write a geocoding web service for genealogy in Java. Because it is for genealogy, I don't need to go down to the street level. I only need to go down to the county. Looking at ...
24
votes
7answers
2k views

Work flow for georeferencing imagery using open source tools?

Does anyone have a recommendation for a work flow for georeferencing high resolution aerial photography using open source tools? Comparison of user friendliness and robustness between Quantum GIS ...
13
votes
4answers
3k views

Geocoding API Comparison

Is there a good updated source for comparing existing Geocoding APIs (i.e. Google, Mapquest) and their features? I'm really interested in their language support as well. For example, Google has ...
18
votes
4answers
5k views

What reliable GeoCoding service would you recommend me?

I'm looking for a web service providing a full address based on coordinates (and reverse). I'm ready to pay for that service. I don't want to use Google's API.
11
votes
6answers
3k views

What's the easiest way to do a one-time mass geocode? (580,000 addresses)

I am working on a civics related project and I need to be able to display all the properties in the City of Philadelphia on a map, so I'll need to get the latitude & longitude for all 580,000 ...
8
votes
4answers
5k views

Geocode address once in google maps, save in database, read geocoded result from there on

Is it possible to geocode an address, save the result in a database, then read that result from there on? I'm using a Google map that is geocoding hundreds of addresses which obviously hit the ...
10
votes
4answers
5k views

What is the difference between geocoding and georeferencing?

After some googling around both seem to be interchangable words, where we speak of tying the spatial info of a real place and storing in database. But still I am not satisfied, there should be some ...
7
votes
4answers
15k views

How to convert zip codes to latitude and longitude?

I have a data set that includes a list of zip codes. Is there a way in R to convert these zip codes to latitude and longitude coordinates?
0
votes
1answer
996 views

Download/create address locator styles for Europe?

Where can I find some address locator styles for European countries? or how can I create my own address locator that contains street, house number and city, and use their aliases? PS. I have the ...
2
votes
4answers
7k views

How to use Google Maps V3 Geocode with Openlayers

How to use Google Maps V3 Geocode with Openlayers. Below is my code but the function does not execute when I try to integrate it with Openlayers. This works with my original google v3 file. Below is 2 ...
1
vote
2answers
147 views

What are good out of the box alternative geocoding solutions to Esri's services?

Esri's legacy geocoding services will retire at the end of the year, what are good GIS services that can replace the North American and US Streets geocoders? I have totally excluded Esri's ...
16
votes
8answers
61k views

How to avoid Google map geocode limit?

I'm creating a custom google map that has 125 markers plotted via a cms. When loading the map I get this message: Geocode was not successful for the following reason: OVER_QUERY_LIMIT I'm pretty ...
10
votes
1answer
6k views

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 ...
18
votes
1answer
2k views

Comparison of geocoding solutions (such as Gisgraphy & PostGIS 2.0)

As I am sure many of you are aware, PostGIS has finally released Version 2.0 and included within this version they have also built a geocoder (see: http://postgis.net/docs/Extras.html). Although I ...
8
votes
4answers
1k views

How to Geocode a City

First, a little disclaimer. I know that I can just call one of any number of geocoding APIs to perform this for me. This is more of a curiosity than anything else. With that aside, how does someone ...
4
votes
1answer
587 views

Is there an open source tool for both road network analysis and geocoding?

Is there any one open source software package that can perform both road network analysis and geocoding?
4
votes
1answer
2k views

Is there a method to create offline geocoder using OSM xml data?

I am trying to develop an offline android map that makes use of OSM map tiles of 15 zoom level, For this purpose i used an open source library : Osmdroid Now, i m looking into the possibility of ...
7
votes
5answers
10k views

How to Geocode 300,000 addresses on the fly?

I have a database which has 300,000 address, which are to be shown on map. I know if I geo-code all the address it will be too expensive for me. So I was wondering if it is possible to geo-code the ...
5
votes
1answer
540 views

Russian GIS Data

Which companies are the best suppliers of vector, geocoding, imagery, and POI data in Russia? Which companies provide a complete service (which includes the above data types and also routing, ...
2
votes
2answers
992 views

How to use Google Maps geocoding with Openlayers?

I'm making a Openlayers map with some shapefile and I have Google Maps base layer. I want to create a text area and a button. When I input a address and click the button, the map should show me the ...
7
votes
4answers
2k views

Does anyone use TRS (Township, Range, Section) data?

I recently had a request for TRS/PLSS data and I didn't know anything about it. I have researched it and it looks like it is purely mathematical (for the most part) based on geo-coordinates but I'm ...
7
votes
4answers
1k views

US One Address locator style missing city, state and zip code fields?

I am using the file: C:\Program Files\ArcGIS\Desktop10.0\Locators\US One Address.lot To do address resolution on a parcel / polygon layer. I'm trying to understand why the file doesn't contain ...
5
votes
2answers
663 views

Do shapefiles sometimes contain the necessary data for address resolution?

Right now I am doing address resolution with a ESRI file called Street_Addresses_US.loc which works. I have been given a shape file that contains streets that was compiled by the state. Is it ...
4
votes
3answers
2k views

Geocode from mile marker/milepost to latitude/longitude?

I have a dataset that describes a few million incidents along Texas roadways. The vast majority of incidents only list a highway name and a milepost. For example, milepost 120 on I-20 or milepost 263 ...
3
votes
5answers
435 views

Assigning centerline address ranges

I've been given the task of assigning address ranges to a centerline feature class. I have all the data and I am just going street by street. My question: When assigning ranges, should I just enter ...
3
votes
4answers
4k views

Free api to reverse geocode latitude, longitude to census tract?

I have a bunch of latitude,longitude coordinates (mostly city/town centroids) in the United States for which I'd like to find the containing census tract. For instance, input => nn.nnn, -nn.nnn ...
3
votes
1answer
377 views

How to scrape addresses from a webpage for geocoding purposes?

I am trying to get addresses from a webpage for mapping purposes. I know I could copy and paste the addresses into an Excel file and geocode them but I was wondering if there was any faster way to get ...
3
votes
1answer
229 views

Which Address Locator types use which .cls files?

I am attempting to edit the standards file used with ArcGIS 10's geocoding engine. Unfortunately, there are 17 files! As far as this website instructs, there should be an .lot file that tells me which ...
1
vote
1answer
647 views

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, ...
1
vote
1answer
237 views

Is it possible to create a geocoding and reverse geocoding service based on the shapfiles data

We have some shapfile data and we have export them to the mysql table. The table have these columns: id name description fulladdress code lng lat ... Now I wonder if it is possible to create a ...
8
votes
1answer
521 views

How does IP geocoding work?

I'm trying to understand how using each part of an IP address influences the accuracy of geocoding. For example, if 15.201.xxx.xxx is used instead of 15.201.123.xxx what is the approximate ...
8
votes
2answers
3k views

How to reverse geocode with ArcMap?

What steps to I have to take in ArcMap (ArcEditor) to input a lat / long and return nearest address? I found the Reverse Geocode tool but I can't figure out what to put in the "Input Features" and ...
4
votes
3answers
241 views

Is it possible to run the address locator in ArcGIS via Python?

I have a question regarding the address locator in ArcGIS. It is possible to create an address locator by using Python, but is it also possible to run an address locator via Python? This means, is ...
4
votes
1answer
509 views

ArcGIS Geocode Single Address Python

How can I geocode a single address in python using arcgis 9.3? I found http://webhelp.esri.com/arcgiSDEsktop/9.3/index.cfm?TopicName=Geocode_Addresses_%28Geocoding%29 - but this does a whole table, ...
3
votes
1answer
316 views

How to get first, most current coordinate in GeoCoordinateWatcher?

It seems like when I have an app that uses a GeoCoordinateWatcher and I attempt to get the first coordinate, it always pulls the last coordinate that the GPS used first when raising the ...
3
votes
2answers
223 views

Very Inaccurate Geocodes in Canada (Quebec)

Edit: Found this page detailing the standard geocoding abbreviation types which may be of use when trying to match foreign street types. It appears that we'll have to create a much more robust ...
2
votes
2answers
516 views

how we create line between two cordinates on polymap?

I am working on d3 and polymaps, I plot map and create circle on the given latitude and longitude which retrieves from the JSON file but now I want to connect those circles with line. I tried to do it ...
1
vote
0answers
41 views

How does Address Locator pick one of two alternative points in ArcGIS for Desktop?

I have geo coded the main entrance of buildings on my map and some buildings have more than one entrance. How does address locator pick one of them? To me it seems it is just randomly picking one of ...
1
vote
1answer
594 views

How does MMQGIS geocoding tool work?

Hi all and thanks for any help. I try geocoding locations from csv file in qgis using mmqgis with no success. is there a log file where i can see the error massages? lets use one of the record as an ...
1
vote
2answers
2k views

Geocoding - get lat/long from 11000 address

What I have: an Excel file with 11 thousand address (street + zip code + city) all address are from Portugal the address are not accurate (some address have the name street in a short way) What I ...
1
vote
1answer
975 views

Multiple response from nominatim service call (Geocoding) in openstreetMap

I am using OpenStreeMap with Google as layer, and for geocoding , nominatim service. Below, is my code. $.ajax({ url: "http://nominatim.openstreetmap.org/search?q=" + address + ...
1
vote
1answer
2k views

Resizing and Reshaping features in Openlayers

Resizing and Reshaping features in Openlayers. I have a map with Openlayers and some controls to draw and modify Features. I need to activate the Resize and Drag and Rotate check button fields as ...
0
votes
1answer
77 views

Pick Address From Map tool won't work

I tried to ask this question before and I made a mess of it. I have edited the question to what I hope will be a more understandable form. Please help me if you can! We just installed Service Pack ...