In 1998 Birmingham City Council (BCC) in the United Kingdom commissioned a pilot study that lead to a city wide Noise Map taking into respects the road and rail net as well as a terrain model and the buildings. Most of the model data was provided in a GIS system based on Ordnance Survey data.
Grid results of noise levels were imported back into GIS and in a second phase the GIS system was used to assess the noise impact on the population.
The unique alphanumeric ‘Ordnance Survey Addresspoint Reference’ or OSAPR was chosen as the common ‘geo-reference’ for dwellings.
Façade point calculations of each dwelling helped to provide a database of buildings and related noise levels. This was used to define average and extreme noise exposures per dwelling. Two main data sources of population data per dwelling were linked with these results in a relational database. GIS has since been used to query these results for various aspects.