Application Study on Building Information Model (BIM) Standardization of Chinese Engineering Breakdown Structure (EBS) Coding in Life Cycle Management Processes

Table 3

Main body of road EBS coding (from the 5^th to 8^th district).

The 5^th district		The 6^th district		The 7^th district		The 8^th district
Structural classification	Coding	Structural component	Coding	Structural part	Coding	Structural member	Coding
Subgrade structure	A	Roadbed	A	No breakdown structure	N###	No breakdown structure	N###
		Embankment	B
		Subsoil	C
		Soil improvement	D
Verge	B	Soil surfaced road	A
		Hard shoulder	B
Side slope	C	Fill slope	A
		Cut slope	B
		Plain stage of slope	C
		Berm	D
Lane separator	D	Plants	A
		Curbstone	B
		Water draining	C
Water draining system	E	Side drain	A
		Water-diversion ditch	B
		Cut-off ditch	C
		Chute drop	D
Road embankment wall	F	Wall	A
		Basement	B
		Shrinkage and tension joint	C
		Drain hole	D
Cut slope wall	G	Wall	A
		Basement	B
		Shrinkage and tension joint	C
		Drain hole	D
Road shoulder wall	H	Wall	A
		Basement	B
		Shrinkage and tension joint	C
		Drain hole	D

Both the main body of the roads and surfaces in the seventh and eighth districts are empty due to structural simplicity. In such circumstances, we should use the letter and pound sign “N###” to indicate that the EBS coding is complete.