Az épületállomány tömegének és anyagösszetételének kísérleti térinformatikai elemzése budapesti mintaterületeken
Experimental GIS analysis of the mass and material composition of the building stock in sample areas in Budapest

Summary/Abstract: Materials in urban areas in the form of buildings and infrastructure networks have the potential to be recycled and thus partially substitute primary raw material sources. The method presented in this study is suitable for determining the mass and material composition of the building stock and its spatial distribution, based on a combination of material intensity factors specific to the building structure and different building types. The characterisation of the whole building stock requires the linking of geographic information system (GIS) data bases for building age and use types, to which specific material in-tensity factors depending on the building type should be assigned. At the metropolitan level, the building stock may consist of up to hundreds of thousands of units, and a trade-off between feasibility and accuracy can be made by introducing and applying the concept of synthetic buildings. Based on the sample area survey, the 490 buildings to be taken into account are calculated to have asynthetic volume of 9.3 million m³ and a total material stock of 3674 kilotonnes. The results demonstrate that the methodology presented can be used to establish there source inventory necessary for the continuous monitoring of the building stock and for a better understanding of urban material flows and stocks (together: urban metabolism).

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