200 km corridor surveyed with RTK drones. Methodology, accuracy assessment, and deliverables.
Project Overview
Central Railway engaged Aeronica to survey 200 km of railway corridor for track alignment assessment, encroachment detection, and drainage system mapping. The project required sub-5cm accuracy across the entire corridor.
Methodology
We deployed three Flycra 2.4 platforms equipped with RTK GPS and high-resolution RGB sensors. Flight planning was optimized for corridor width and overlap requirements. Ground control points were established at 2 km intervals for accuracy verification.
Results
The survey was completed in 12 flight days, producing orthomosaics at 2 cm GSD, a digital elevation model at 10 cm resolution, and a comprehensive GIS database of track features, encroachments, and drainage infrastructure.