Geographical Information Solutions & Services

Data services

Address Management & Geocoding

Geocoding is the process of adding a National Grid co-ordinate to a location, usually an address. A locational confidence code can also be added.

Landmark has built up considerable experience of the problems of working with address-based data and has developed a rigorous process for accurate geocoding which aims to provide co-ordinates to an accuracy of 1 metre. This means the geocoding is at individual building level unlike many geocoding processes, which relate locations only to the postcode unit.

Our geocoding process uses QuickAddress, Address-Point^TM and our own Promap mapping software to clean up and improve address information and to accurately geocode it. The process includes thorough quality control procedures, including manual checking and is carried out by dedicated, trained operators.

Data can be input from spreadsheets, databases or comma separated files and the output will include the input address, cleaned up output address, geocode, address point reference (optional) and a location confidence code and can be delivered on CD, via email or FTP. The output data can be used as a standalone database or in any standard GIS software.

Positional Accuracy Improvement Services

At Landmark we recognise that the optimum solution to the PAI problem is not the same for all organisations, so we have developed a comprehensive, flexible and cost-effective service which can be tailored to meet your specific needs.

We work closely with you, using your intimate knowledge of your data, coupled with our "toolkit" of solutions, to identify the most appropriate solution for each dataset. We provide a high quality result through innovative ideas that combine cutting edge technology with skilled personnel for manual operations. Click here for further information about our PAI services.