Table 3. Modeling scopes and methods

Category	Space type in biotope area ratio		Included	Modeling method	Library type
Buildings and other structures	Not applicable		◯	• Modeled in mass forms with SketchUp and imported to the main model
Terrain	Not applicable		◯	• Modeled based on the contours and levels of the masterplan
Items non-related to buildings	Natural ground green area		◯	• Modeled as a floor element with natural surface material	Single library
	Artificial ground green area	90cm≦soil depth	◯	• Modeled as a floor element with the layers of materials • Temporarily moved down the terrain 90, 40, and 10cm in order to check clash detection	Assembly library
		40cm⁦soil depth<90cm
		10cm⁦soil depth<40cm
	Water space	Water permeable	◯	• Modeled as a floor element with the layers of materials • Two types of water space are distinguished by the floor material that determine the land cover type	Assembly library
		Water impermeable
	Partial pavement		◯	• Should include information that the planting area should be more than 50% in the object property	Assembly library
	Permeable pavement on entire surface	Permeability Class I	◯	• Should include information on the permeability coefficient and class in the material property	Assembly library
		Permeability Class II
	Pavement with cracked surface		◯	• Should include information on filling with more than 10mm of fine aggregate	Assembly library
	Linked area to rainwater storage & infiltration facilities		◯	• Modeled as a separate single library for area estimation in the landscape model (may be included as a roof element in the architecture model) • Should identify the necessary facilities and the operation methods in the property	Single library
	Pavement area		◯	• Modeled as a floor element in 3D form based on the slope	Assembly library
Items related to buildings	Rooftop greening	30cm⁦soil depth	×	• Modeled as a floor element with the layers of materials • May be separately modeled from the main landscape model and integrated later	Assembly library
		20cm⁦soil depth<30cm	×
		10cm⁦soil depth>cm	×
	Wall greening		×	• May be modeled as a single wall element on the buildings in architecture model, and integrated with the main model later	Single library