Crane Lifting Optimization and Construction Monitoring in Steel Bridge Construction Project Based on BIM and UAV

Table 4

Navigation parameters of the two flying routes.

Dual-strip flight modes	Perpendicular	Parallel
Flight height	220 m	200 m
Side overlap	60%	80%
Heading overlap	91%	91%
Total flight distance	8.5 km	12.6 km
Total flight time	18 min	29 min