Data supply

DVD Supply of area of interest

When you receive an order via hard media (DVD), the following files will be supplied for the contracted area of interest (AOI):

• Data

• Doc

• Order_Details.txt

Within the Data directory, data files will be found in their compressed format.

Within the Doc folder, a text file called Label Information.txt will contain information that is printed on the DVD.

The Order_Details text file will provide information about the order, including the order date, currency date and file structure.

DVD supply of Managed Great Britain Sets

When you receive an order of a Managed Great Britain Set (MGBS) via hard media (DVD), the following files will be supplied:

• Data

• Doc

• Resources

• readme.txt

There are several items contained within your supply:

• Data folder – This folder contains all of your data supply.

• Doc folder – This folder contains the Medialis.txt file, which outlines the contents of the data you have been supplied.

• Resources folder – This folder contains lookup tables for the local custodian code and AddressBase classification scheme as well as the Header files for the product.

• The readme text file – This document provides guidance notes on matters such as the filename referencing used and the directory structure of the DVD.

Secure File Transfer Protocol

With a Secure File Transfer Protocol (SFTP) order, the same folder structure is supplied as in DVD Supply of area of interest. The filenames will be slightly different, reflecting the SFTP order number, and the Docs folder will be empty.

Download

Public Sector Geospatial Agreement (PSGA) customers can download their geographic chunk data for AddressBase and AddressBase Plus as well as a full supply of AddressBase Plus Islands via our download service.

Download instructions

1. When you click Download data, you will be required to enter a password to access the PSGA Member’s Area. On successful entry to the download service, you will be able to view all your orders in the Member’s Area and download your data.

2. If you have ordered your data from our online portal, you will be sent an email with a link to a download page.

3. Within the PSGA Member’s Area, you can order and download the data that you require by clicking on Order Data, which can be found under the Map Data heading.

4. Once you have selected Order Data, you will be presented with the Order page. From here, you can manage all your orders, including those for AddressBase products.

5. When you have placed an order for a product, the data will become available as a series of zipped data files. To unzip these files, please refer to Unzipping the data.

Chunked files

The data is supplied as chunked files that cover your selected area. These files are named according to the convention shown below.

When you open your data, you will see a series of zip folders:

Non-geographic chunks

Using AddressBase Plus and Islands as an example:

• AddressBasePlus_FULL_2020-01-21_001_csv.zip (Full supply of GB CSV)

• AddressBasePlus_ISL_FULL_2020-01-21_001_csv.zip (Full supply of Islands CSV) or

• AddressBasePlus_COU_2020-01-21_001_gml.zip (COU supply of GB GML)

• AddressBasePlus_ISL_COU_2020-01-21_001_gml.zip (COU supply of Islands GML)

Geographic chunks

Using AddressBase Plus as an example:

• AddressBasePlus_FULL_2011-07-29_TQ2020_csv.zip (Full supply of CSV) or

• AddressBasePlus_COU_2011-07-29_TQ2020_gml.zip (COU supply of GML)

The AddressBase Plus Islands product is not available in geographic chunks.

Unzipping the data

The GML and CSV data is supplied in a compressed form (ZIP). Some software can access these files directly, while other software will require the files to be unzipped.

To unzip the zipped data files (.zip extension), use an unzipping utility found on most PCs, for example, WinZip. Alternatively, open-source zipping/unzipping software can be downloaded from the Internet, for example, 7-Zip.

When you unzip the files, the data will be extracted as CSV files, which are ready to use. For example, unzipping AddressBase Plus will extract files similar to the chunks below:

Non-geographic chunks

• AddressBasePlus_FULL_2020-01-21_001.csv

• AddressBasePlus_ISL_FULL_2020-01-21_001.csv

Geographic chunks

• AddressBasePlus_2011-07-29_NC4040.csv