Hackney's Progress on the Local Land and Property Gazetteer
Since starting the LLPG project, we have divided the project into a number of stages. These individual stages have differing time constraints depending the complexity of the tasks involved. The highlighted text represents a completed stage.
| 1. Intial data matching and building of LLPG - With the aid of a third party data matching service (Intelligent Addressing) an initial LLPG was built. This was derived using three of the council's major address lists (council tax, electoral registration and non-domestic rates) as well as the Ordnance.Survey dataset derived from the royal mail, address-point. Much of our later work would be to resolve the discrepencies in address naming between these lists. |
| 2. Preparation work - All properties live on a street. So a working and accurate Street Gazetteer needed to be in place before commencment of the LLPG project. With the help and cooperation of our own higways department, and in coordination with a project being conducted by Transport for London, the borough's streets were reviewed and updated. Click on link for a screen shot of Hackneys Street Gazetteer. |
| 3. Installation of BS7666 Gazetteer - A system for managing the vast amount of property data relating to the borough was needed. This system had to not only maintain this property data in a way that was compliant with the British standard for address representation (BS7666), but also enable the LLPG to easily connect to the national hub and other council systems. Through a process of procurement, the LLPG Gazetteer system from MVM consultants was aquired and installed. Once the LLPG team where given training in the system they were ready to commence on the next stage of the project. Click on link for a screenshot of Hackneys Property Gazetteer. |
| 4. Cleaning of the data - This is the real 'nuts and bolts' of any project to build a gazetteer. This involves resolving the differing ways that different data sources refer to the same properties. In a London borough this can be a particularly frustrating task because of the great variety and number of internal subdivisions that exist. It is often difficult, for example, to be sure if 14B some street is actually a separate building on its own or a flat within number 14. To tackle these sort of problems we designed a set of rules to guide ourselves in the process and consult many differing address sources both within and without the council. Then, if all else fails, site visits are arranged to actually go and look at the properties concerned.This stage will prove to be the lengthiest of all stages within the project. The target for completion of this phase is July 2005. Prior to this date, however, the LLPG team will begin the process of updating the national NLPG hub. |
| 5. Gazetteer linkup to other corporate applications - Once the gazetteer is built, the next stage is to begin a process of linking the LLPG to the council systems that are reliant on address information. Much of the initial ground work and negotiations with other departments and teams will begin during the previous stage, but actual physical connections can only begin once the gazetteer itself is resolved and verified.. |
| 6. Ongoing maintenance and improvement. - Since addresses within a borough never remain static there must be an ongoing process to keep the LLPG up to date. It may also be desirable to expand the scope of the LLPG to store more than just the properties that people live in or that businesses work out of. To aid in building an overall model of the borough, and to aid in general asset management, such things as bus shelters, street lighting and parks may also be stored within the gazetteer. |
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Page updated: 15 Jun 2010
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