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Showing posts with the label Geocoding

National Geodetic Survey plans to release future Geodetic Datums in 2022

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National Geodetic Survey (NGS)  developed videos to give you a better understanding of NGS' plans to release new datums in 2022. If you use mapping products or other geo-spatial tools, these videos should also help you find out how you can prepare for the new datums. . It’s a number of years off - but the links explain the changes and provide some initial knowledge that may help you prepare for their advent… This series of short videos, produced in collaboration between NOAA's National Geodetic Survey and The COMET Program, a part of UCAR's Community Programs, provides an introduction to geodetic datums for anyone who uses mapping products or other geo-spatial tools.  In the first video, "What are Geodetic Datums?" (4:36), explains the basic concepts behind geodetic datums, where they are used, and why it is important to know about and use the correct datums.

US address correction, address verification, and geocoding using ZP4, Google Geocoding API, and Bing Maps API

From a couple of months, I have been involved in Tax certificate address verification project for educational purpose; I have around 8 million parcel address   collected and maintained by different tax collecting agencies in various format for instance COBOL ,CSV, ASCII, Excel , and some are even in pdf for their tax districts.  My task was to find the address from those different files and export them in CSV with corrected standard USPS address format (STREET, CITY, STATE, and ZIP) to make Universal Tax File format for data analysis by removing unwanted data from the address rows.   Initially, I used ZP4 software, it has “ official United States Postal Service data files on a single DVD-ROM that provides a powerful tool for automatically determining the correct mailing address, ZIP + 4 code, and mail carrier route number for any location in the United States”, works fine for few address (about 15%) which has proper USPS standard address format. The real challenge s...