Network Survey Vehicles (NSVs) Deployed for AI – Enabled Highway Monitoring

In a significant step toward enhancing road safety and asset management, the National Highways Authority of India (NHAI) has announced the nationwide deployment of Network Survey Vehicles (NSVs) across 23 states, covering approximately 20,933 kilometres of National Highways, to enable AI-driven monitoring and maintenance of road conditions.

NSVs will conduct high-precision surveys using 3D laser-based systems, 360-degree cameras, Differential Global Positioning Systems (DGPS), Inertial Measurement Units (IMU), and Distance Measuring Indicators (DMI). These advanced sensors will automatically detect and record pavement defects such as surface cracks, potholes, and patches, significantly reducing the need for manual inspections.

Data collected through the NSV surveys will be processed to evaluate road inventory and pavement condition across two-, four-, six-, and eight-lane highway projects. Each highway stretch will be surveyed prior to project commencement and subsequently at six-month intervals, ensuring continuous monitoring and timely maintenance.

All data will be uploaded to NHAI’s AI-based Data Lake portal, where it will be analysed by a team of experts to generate actionable insights. The findings will support evidence-based maintenance, prioritization of works, and optimal allocation of funds under the Road Asset Management System (RAMS). The datasets will be stored in accordance with Government of India guidelines for long-term technical use.

This AI-enabled, data-driven framework will improve transparency, efficiency, and accountability in highway upkeep while strengthening preventive maintenance strategies. The insights derived will help extend pavement life, reduce lifecycle costs, and enhance overall service levels for road users.

To implement this initiative, NHAI has invited bids from qualified firms to undertake deployment, data collection, and system integration. Once operational, the NSV programme will serve as a cornerstone of India’s digital highway management system, ensuring safer, smarter, and better-maintained national road infrastructure.