appliances, lighting, space cooling, space heating, ventilation or auxiliary) and
energy source (coal, chilled water, electricity, fuel oil, hot water, natural gas,
propane, steam, wood chips, wood pellet). An environmental ID is associated to
the data for the calculation of environmental indicators.
– Generic attributes such as Main structure material (Concrete, Cellular concrete,
Wood, Reconstituted wood, terracotta …) are added to the building class to
perform screening LCA when specific data is not available (cf. Fig. 2).
– We propose then to create a new concept class Component. This new class can
be added to any city object to specify an Environmental Product Declaration
identifier (environmental ID) and a quantity. A service life attribute provides
information to calculate the component replacement rate during the city object
life time. This class is then declined into four children classes: Surface
Component, Network Component, System Component, and Other Component.
– The Surface Component class describe components such as walls, floors, roofs
… when a detailed characterization of products and materials composing the
building is not available. The construction system and main material attributes
Fig. 2 Proposal for the integration of LCA data requirements into CityGML and energy-ADE
standards. New concepts proposed appear in green
A Proposition to Extend CityGML …
289
energy source (coal, chilled water, electricity, fuel oil, hot water, natural gas,
propane, steam, wood chips, wood pellet). An environmental ID is associated to
the data for the calculation of environmental indicators.
– Generic attributes such as Main structure material (Concrete, Cellular concrete,
Wood, Reconstituted wood, terracotta …) are added to the building class to
perform screening LCA when specific data is not available (cf. Fig. 2).
– We propose then to create a new concept class Component. This new class can
be added to any city object to specify an Environmental Product Declaration
identifier (environmental ID) and a quantity. A service life attribute provides
information to calculate the component replacement rate during the city object
life time. This class is then declined into four children classes: Surface
Component, Network Component, System Component, and Other Component.
– The Surface Component class describe components such as walls, floors, roofs
… when a detailed characterization of products and materials composing the
building is not available. The construction system and main material attributes
Fig. 2 Proposal for the integration of LCA data requirements into CityGML and energy-ADE
standards. New concepts proposed appear in green
A Proposition to Extend CityGML …
289