Four-dimensional Mapping of Building Material Stock and Energy Consumption for Stock-type and Low Carbon Society: A Case Study of Buildings in Nagoya City

Abstract

Low carbon emission and less material input are the key factor of urban / regional environment planning. Construction sector use approximately half weight of material input of Japanese society. Successive estimation of Material Stock and Energy Consumption leads to clarify level of sustainability. The object of this paper is to clarify contribution of GIS for material stock and energy flow accounts. Material Stock and energy consumption of urban infrastructure in the near future were estimated using model with 4-D GIS (fourth dimensions geographical information systems), which includes spatial 3-D GIS with time scale. With using Historical Spatial Information, we could know successive change of material stock, energy consumption and CO₂ emission, life span of urban structures, and future projection of material and energy balance of city.