Developing Methods for Population Modelling and Disag¬gregating Census Data - A Comparison between Day and Night Population

With the increase of urbanization world wide it becomes more important for urban planners and disaster managers to have data on the small-scale distribution of population at hand. This data is usually not readily available but can be extracted by using different datasets and methods. Especially the calculation of the daytime population is complex since it requires many different auxiliary data in order to model the distribution of every population group during the day whereas the calculation of the nighttime population is comparatively simple as most of the inhabitants are expected at home. This thesis will examine methods and datasets which are available for the modelling of the day (and night) time population and disaggregating census data, how accurate their results are and how the accuracy can be improved. In order to do this a small-scale population estimation on the level of individual buildings for Vienna (2013) was done considering daytime and nighttime population, including different age groups and evaluating different methods and data. Furthermore, the results are compared to the daytime population grid 2013 of Statistik Austria.