Automated Reconstruction of Parametric BIM for Bridge Based on Terrestrial Laser Scanning Data

Table 1

Comparison results of the reconstruction of BIM l and the point cloud.

	Standard deviation (m)	Positive mean deviation (m)	Negative mean deviation (m)	Limit value (m)
Pier a	0.0169	0.0148	0.0096	<0.02
Pier b	0.0104	0.0092	0.0072	<0.02
Precast box girder c	0.0084	0.0091	0.0047	<0.015
Precast box girder d	0.0081	0.0089	0.0042	<0.015