Comprehensive drone-based data collection for Detailed Project Reports (DPR) — delivering topographic surveys, alignment studies, cross-sections, and geospatial datasets that form the foundation of infrastructure project planning and government approvals.
A Detailed Project Report is only as good as its survey data. Traditional DPR surveys using ground teams are slow and often incomplete — missing terrain detail, underrepresenting structures, and delivering data too coarse for accurate cost estimation. Our drone surveys deliver the high-resolution, georeferenced spatial data that modern DPR preparation demands.
Drone-based DPR surveys deliver 5–10x more spatial data per survey rupee than traditional methods — resulting in better alignment decisions, more accurate cost estimates, and faster approval timelines.
Aerial corridor imagery, existing infrastructure mapping, and land use analysis for project justification and need assessment sections.
Orthomosaic · LULC MapComplete terrain mapping, alternative alignment comparison overlays on orthomosaic, and horizontal/vertical alignment design data.
DEM · Cross Sections · L-SectionStructure enumeration, land use classification, and affected household mapping for land acquisition cost estimation and R&R planning.
Structure Count · Land Use GISCatchment area delineation, DEM-based drainage network extraction, and cross-drainage structure location identification from aerial data.
DEM · Catchment · DrainageEarthwork volume calculations from terrain cross-sections, structure counts, and cut-fill analysis for BOQ and cost estimate preparation.
Volume · Earthwork · BOQForest cover, water bodies, sensitive area, and biodiversity mapping for EIA baseline data as required under MoEF forest clearance procedures.
EIA · Forest · Water BodiesOverhead line mapping, utility corridor identification, and structure counting for utility shifting estimation and temporary land use planning.
Utilities · Overhead LinesAll DPR maps — key map, index map, alignment plan, cross-section sheets, and land plan — generated from drone survey data in required scales and formats.
GIS · CAD Drawings · PDF MapsState and national highway DPR surveys — new alignments, upgradation, 4-laning, and bypass projects. MoRTH, NHAI, and NHIDCL format compatible.
New railway line, gauge conversion, metro, and RRTS DPR survey support — corridor terrain, structure surveys, and alignment study data for IR and metro authorities.
Dam, canal, lift irrigation, and water supply DPR surveys — catchment mapping, canal alignment, structure siting, and command area delineation.
Transmission line DPR surveys — route optimisation, tower spotting, span analysis, and forest/agricultural land crossing identification for PowerGrid and state utilities.
Smart city, AMRUT, and urban infrastructure DPR base mapping — storm water drainage, sewerage, road widening, and utility upgrade project surveys.
Cross-country pipeline DPR corridor surveys — terrain, crossing identification, land use, and environmental sensitivity mapping for GAIL, ONGC, and state gas utilities.
We review the DPR TOR, data requirements from the client/authority, corridor extent, and deliverable specifications to design the survey package.
DGCA airspace clearances and any required authority NOCs are obtained. For sensitive corridors (forest, military zones), additional permissions are coordinated.
A permanent GCP network is established using DGPS/Total Station and tied to SOI datum — ensuring all drone data is georeferenced to national standards.
Systematic corridor flights for topographic mapping, structure photography, and any supplementary missions (multispectral, LiDAR) as defined in the survey scope.
Orthomosaic, DEM, cross-sections, and GIS vector layers are prepared. Structure enumeration and land use classification are performed on the processed imagery.
All survey data, maps, cross-section drawings, and GIS layers are compiled into a structured DPR data package with a survey report for seamless integration into the DPR document.
High-res corridor image map
Terrain model for drainage design
L-section & X-section drawings
Land use & structure GIS data
Horizontal & vertical alignment
Complete methodology report
Share your project sector and corridor details — get a custom DPR survey package quotation within 24 hours.