Published: 22 October 2025General
NHAI Deploys 3D Laser Network Survey Vehicles Across 23 States
The National Highways Authority of India (NHAI) deployed 3D laser-based Network Survey Vehicles across 23 states, covering 20,933 km of national highways. The AI-driven system automatically detects road defects like cracks, potholes, and patches in real-time.
The survey vehicles use LiDAR and high-resolution cameras to create detailed 3D profiles of road surfaces and generate defect maps. The data feeds into NHAI's Integrated Road Management System for prioritised maintenance planning. This marks a shift from manual road inspections to technology-driven asset management, expected to enable predictive, faster and more efficient maintenance.
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Frequently asked questions
What is NHAI's 3D laser network survey vehicle programme?
**NHAI** deployed **3D laser network survey vehicles** across **23 Indian states** to survey **20,933 km of national highways**, collecting detailed digital road condition data for evidence-based maintenance planning and infrastructure management.
How many states and kilometres of highway are covered by NHAI's 3D laser survey?
NHAI's 3D laser survey vehicles cover **23 states** and **20,933 km of national highways**, representing a significant portion of India's total national highway network being assessed with advanced technology.
What data does NHAI's 3D laser survey vehicle collect?
The **3D laser survey vehicles** collect data on **pavement condition, road geometry, lane width, rut depth, cracking patterns, and structural parameters**, providing a comprehensive digital twin of highway assets for maintenance prioritisation.
How does the 3D laser highway survey improve NHAI's road maintenance?
The **3D laser survey** replaces subjective manual inspections with **objective, data-driven assessments**, enabling NHAI to identify deteriorating road sections early, allocate maintenance budgets efficiently, and plan interventions before roads become hazardous.
What is the broader significance of NHAI deploying advanced survey technology?
NHAI's adoption of **3D laser survey technology** across 23 states signals India's shift toward a **data-driven national highway management system**, improving asset lifecycle management, reducing accidents from poor roads, and optimising public spending.
