Road Corridor Data That Keeps Your Project on Budget and on Schedule

Road and highway projects lose margin the same way every time - earthwork quantities disputed at billing, alignment deviations caught after compaction, and progress reports that do not reflect what is actually on the ground.

Aeroyantra delivers survey-grade drone mapping and LiDAR for road and highway construction - cut/fill analysis, earthwork validation, corridor mapping, progress tracking, and as-built verification across every phase of the project lifecycle.

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Road Projects Lose Margin at the Same Three Points. Every Time.

Road and highway construction is one of the most data-intensive project types in infrastructure - and one of the most consistently under-measured. The gap between what was designed, what was built, and what was measured produces cost overruns that repeat across projects regardless of contractor experience or project scale.

The pattern is consistent:

• Earthwork quantity disputes arise because volumes were estimated from cross-sections, not measured from the ground as it was actually cut and filled

• Alignment deviations go undetected until subgrade preparation is complete, compaction is done, and corrective work requires breaking finished layers

• Progress reporting is subjective because site visits cover a fraction of a multi-kilometer corridor and ground-level visibility is inherently limited

• Billing cycle reconciliation fails because the quantity data submitted by the contractor and verified by the engineer were measured differently, at different times, using different methods

• As-built documentation is assembled reactively from incomplete field records that do not reflect what was actually constructed

• Haul route optimization is guesswork because cut-and-fill balance calculations are based on design cross-sections rather than measured terrain

By the time any of these problems surface in a project review, the cost of correction has compounded beyond what a single survey cycle would have cost to prevent.

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Survey-Grade Corridor Data at the Frequency Your Project Demands

Aeroyantra delivers drone mapping and LiDAR workflows purpose-built for road and highway construction - where multi-kilometer corridors, tight tolerances, and billing cycle documentation requirements demand accuracy, repeatability, and traceability.

With RTK, PPK, and GCP-supported workflows, Aeroyantra achieves 2-3 cm horizontal accuracy and vertical precision suitable for earthwork validation, alignment verification, and quantity reconciliation across road corridors of any length.

What that means for road projects:

• Measured earthwork volumes - Cut and fill quantities derived from survey-grade surface models, not estimated from cross-sections

• Alignment verification before compaction - Current centerline and edge-of-pavement positions compared against design before each layer is placed

• Independent progress documentation - Weekly or fortnightly aerial records covering the full corridor for client reporting and billing verification

• Billing cycle quantity reports - Volume and area calculations tied to payment milestones, providing an independent measurement basis for quantity certification

• As-built corridor mapping - Complete aerial record of the finished road for handover documentation and maintenance planning

• GIS and Civil 3D compatibility - All deliverables compatible with AutoCAD Civil 3D, Bentley MicroStation, and standard GIS platforms

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Earthwork Validation and Cut/Fill Analysis

Measure What Moved. Bill What Was Measured. Prevent Disputes Before They Start.

Earthwork quantity disputes are the single largest source of billing conflict on road projects. Cross-section methods introduce variance of 5-15% on large earthwork packages. That variance becomes a dispute. Aeroyantra replaces estimation with measurement.

What Aeroyantra delivers for road earthworks:

• Corridor-wide cut/fill analysis - Measured volumes across the full corridor length, segmented by chainage or billing section

• Net earthwork balance - Cut-minus-fill calculation for material import/export planning and haul optimization

• Design-to-actual comparison - Current earthwork surface compared against design subgrade to identify areas ahead of or behind design intent

• Weekly billing cycle reports - Volume reports at every survey cycle, tied to billing milestones, providing an independent measurement basis for payment verification

• Borrow pit and spoil area tracking - Volume tracking of material sources and disposal areas alongside the main corridor survey

• Haul route optimization data - Spatial cut-and-fill distribution for optimizing material movement and reducing haul distances

• Grade control verification - Subgrade surface levels verified against design before compaction and before each pavement layer

Technical Performance:

Parameter	Specification
Georeferencing	RTK, PPK, GCP-supported
Horizontal accuracy	2-3 cm under proper survey standards
Vertical accuracy	Suitable for grade control and earthwork validation
Volume accuracy	Within 1-2% for well-defined earthwork areas
Corridor coverage	Up to 50 km per survey mission
Output formats	GeoTIFF, DXF, SHP, LAS, PDF - Civil 3D, MicroStation compatible

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Alignment Verification and Pavement Quality Control

Catch Alignment Deviations Before Compaction. Not After.

Alignment deviations that go undetected until after subgrade compaction require breaking finished work. Aeroyantra verifies centerline and edge-of-pavement positions against design at every survey cycle - before the next layer is placed.

What Aeroyantra delivers for alignment verification:

• Centerline position verification - Current centerline position compared against design alignment, with deviation values reported by chainage

• Edge-of-pavement verification - Measured pavement edge positions compared against design width and cross-fall requirements

• Superelevation verification - Cross-fall and superelevation measurements derived from surface model data for quality control

• Pavement thickness verification - Layer thickness verification before each subsequent layer is placed

• Surface condition assessment - High-resolution aerial imagery for pavement surface condition mapping and defect identification

• Joint and crack mapping - Identification and georeferencing of pavement joints, cracks, and surface defects for quality control

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Complete Deliverables for Road and Highway Projects

Deliverable	Pre-Construction	Earthworks	Pavement	Structures	Closeout
High-res orthomosaic	✓	✓	✓	✓	✓
Digital Terrain Model (DTM)	✓	✓	-	-	✓
Digital Surface Model (DSM)	✓	✓	✓	✓	✓
Cut/fill volume report	✓	✓	-	-	-
Alignment deviation report	-	✓	✓	-	✓
Design overlay comparison	-	✓	✓	✓	✓
LiDAR point cloud (LAS/LAZ)	✓	-	-	✓	✓
Pavement condition assessment	-	-	✓	-	✓
As-built corridor mapping	-	-	-	-	✓
Time-series progress archive	-	✓	✓	✓	✓
Civil 3D compatible exports	✓	✓	✓	✓	✓
PDF progress reports	-	✓	✓	✓	✓

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Who Uses Aeroyantra for Road and Highway Projects

Aeroyantra is used by contractors, project managers, engineers, and clients managing:

• NHAI highway construction and HAM projects
• State PWD road construction and widening projects
• Expressway and greenfield highway development
• Urban road and flyover construction
• Rural road development under PMGSY
• Road rehabilitation and maintenance projects
• EPC contractors requiring independent quantity verification
• Project management consultants providing owner representation

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Frequently Asked Questions

Q1: How does drone survey accuracy compare to traditional cross-section methods for road earthworks?

With RTK or PPK georeferencing, Aeroyantra achieves 2-3 cm horizontal accuracy and vertical precision suitable for earthwork validation. The key difference is coverage - cross-section methods measure the corridor at discrete intervals (typically 20-50 m), while drone surveys produce a continuous surface model of the entire corridor. This eliminates interpolation errors between cross-sections and captures actual ground conditions across the full corridor width.

Q2: Can Aeroyantra cover multi-kilometer highway corridors in a single survey?

Yes. Aeroyantra survey missions can cover up to 50 km of corridor length in a single day depending on corridor width, terrain complexity, and required resolution. For longer corridors, surveys are conducted in sequential sections with consistent georeferencing to maintain accuracy across the full project length.

Q3: Can Aeroyantra data be used directly in AutoCAD Civil 3D for road design?

Yes. Aeroyantra exports DXF, DWG, LAS/LAZ, and GeoTIFF formats that import directly into AutoCAD Civil 3D and Bentley MicroStation. DTM data can be used as existing ground surfaces for earthwork calculations, alignment design, and cross-section generation without conversion or reformatting.

Q4: Can Aeroyantra support NHAI documentation requirements for HAM projects?

Yes. Aeroyantra produces georeferenced, time-stamped aerial records and volume reports meeting NHAI documentation standards for HAM project monitoring and payment certification. Report formatting can be configured to match specific NHAI requirements. We recommend confirming format requirements with your project's independent engineer before the first survey cycle.

Q5: At what frequency should road corridor surveys be conducted?

Survey frequency depends on project phase and requirements. For earthworks phase, weekly or fortnightly surveys are standard for quantity verification and billing cycle documentation. For pavement phase, monthly surveys are typical for progress monitoring. For as-built documentation, a final survey at practical completion is required. Aeroyantra supports any survey frequency from weekly to quarterly.

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Ready to Get Started?

Whether you are managing earthwork quantities, verifying alignment before compaction, tracking corridor progress, or preparing as-built documentation, Aeroyantra gives your road project team the aerial data to make decisions based on what is actually on the ground.