AI-Powered Road Safety Survey for the Radhanpur–Chanasma Road, Gujarat

A 60 km AI-powered road safety survey of the Radhanpur–Chanasma Road in Gujarat using vehicle-mounted dashcam surveys and AI-based analysis to identify and geo-tag road safety concerns, classify risk as High, Medium, or Low, and map every finding to the relevant IRC provision, including dedicated compliance assessments for road signage (IRC 67) and road markings (IRC 35). Delivered through a GIS dashboard giving the road authority location-specific, actionable insight to support safety planning

THE CHALLENGE

A Rural Highway Corridor With No Systematic Safety Review

The Radhanpur–Chanasma Road is a district-connecting corridor in Gujarat, linking a string of villages  Radhanpur, Amirpura, Gochanad, Daudpur, Baspa, Varana, Jalalabad, and Sami  across roughly 60 km. Like most rural and district-level roads in India, it carries real traffic risk but rarely receives the kind of formal, code-referenced safety review that busier state highways get. A traditional Road Safety Audit, run by a multi-disciplinary expert panel physically walking or driving the corridor, is thorough but slow, expensive, and infrequent  leaving long gaps in which damaged safety furniture, overgrown shoulders, and non-compliant signage go unreported.

The road-owning authority needed a way to run a safety-focused assessment across the full 60 km stretch that did more than flag potholes  one that could identify safety-critical issues specifically, classify them by risk severity, and tie every finding back to the IRC provision it relates to, so the results could feed directly into a maintenance and budget decision rather than sit as a general condition report.

Manual Road Safety Audits Are Slow and Infrequent

A traditional expert-panel RSA is resource-intensive to mobilise, meaning most district-connecting roads like this one go long stretches without any formal, structured safety review.

Findings Rarely Mapped to Specific IRC Provisions

Safety observations are often recorded informally, without being tied to the IRC clause they relate to  making it hard for a maintenance engineer to know exactly what standard a fix needs to meet.

Safety-Critical Assets Go Unchecked Between Reviews

Damaged crash barriers, especially near water crossings, carry severe run-off-road risk but have no continuous monitoring mechanism outside a scheduled audit cycle.

Signage and Marking Compliance Rarely Assessed on Its Own

IRC 67 (signage) and IRC 35 (road marking) compliance require dedicated technical review that routine maintenance inspection typically has neither the time nor the specific expertise to carry out.

THE DEPLOYMENT

From Dashcam Footage to an IRC-Mapped Safety Findings Register

RoadVision AI surveyed the full 60 km Radhanpur–Chanasma corridor using a vehicle-mounted dashcam rig, processing the footage through its AI engine to detect safety-relevant defects, classify each by risk severity, and tie every finding back to the specific IRC provision it relates to  including dedicated compliance checks against IRC 67 for signage and IRC 35 for road markings.

Corridor Scoping  60 KM, RADHANPUR–CHANASMA ROAD

The survey scope was defined as the full Radhanpur–Chanasma corridor in Gujarat, spanning the villages of Radhanpur, Amirpura, Gochanad, Daudpur, Baspa, Varana, Jalalabad, and Sami  a representative rural, district-connecting road profile.

Vehicle-Mounted Dashcam Survey  GPS, SPEED & TIMESTAMP LOGGED

A dashcam-equipped survey vehicle drove the corridor at normal traffic speed, capturing continuous video alongside GPS position, timestamp, and vehicle speed for every frame giving each finding a fully field-verifiable data trail, not just a photograph.

AI-Based Risk Detection & Classification  HIGH · MEDIUM · LOW

 Footage was processed through RoadVision AI's computer vision engine to detect safety-relevant defects — including damaged crash barriers, shoulder condition, signage, and markings  with every finding classified into a High, Medium, or Low risk tier and geo-tagged to its precise location.

Mapping Findings to IRC Provisions  IRC 67 · IRC 35 · SAFETY PROVISIONS

Every finding was mapped to the relevant IRC clause, with dedicated compliance evaluations run against IRC 67 for road signage and IRC 35 for road markings  turning each observation into an actionable, code-referenced item rather than a general note.

GIS Dashboard & Actionable Insight Delivery  LOCATION-SPECIFIC FINDINGS

All findings were delivered through a GIS dashboard filterable by Road Name, Authority, Road Type, Road Condition, Survey Date, and Day/Night capture — giving the road authority location-specific, actionable insight to support safety assessment and improvement planning

PLATFORM IN ACTION

Two Views of a Code-Referenced Safety Survey

The screenshots below show the RoadVision AI platform as deployed for the Radhanpur–Chanasma survey  from the GIS map pinpointing a specific safety finding down to its GPS coordinate, to the dashboard summarising condition and safety-relevant surface findings across the full 60 km corridor.

GIS Map View — Geo-Tagged Inspection Point With AI-Annotated Evidence

Figure 1: GIS map of the Radhanpur–Chanasma corridor, filtered to “Damaged (MBCB) Metal Beam Crash Barrier” findings. Two separate high-risk clusters are flagged along the route, both near water crossings.

Survey Dashboard — Road Condition & Safety-Relevant Surface Findings

Figure 2: Dashboard view for the Ahmedabad-region survey — 60.5 km assessed (42.24 km Good, 2.01 km Fair, 16.27 km Poor) and the Roadway Surface defect breakdown: 487 shoulder-related findings, led by 485 instances of shoulder vegetation growth that reduce sight distance and obscure roadside safety furniture.
KEY FINDINGS

What the 60 KM Safety Survey Found

The survey gave the road authority its first geo-tagged, IRC-referenced safety picture of the Radhanpur–Chanasma corridor. Beyond the overall condition split, two patterns stood out as directly relevant to crash risk rather than general pavement wear.

THE DELIVERABLES

What the Road Authority Received

RoadVision AI's platform delivered five structured outputs from the Radhanpur–Chanasma survey  each built to move a road safety finding from detection through to a defensible, code-referenced action item.

GIS Risk Map — Geo-Tagged, Severity-Classified Safety Findings

The location-specific view for field verification

  • Every safety finding plotted with precise GPS coordinates along the 60 km corridor
  • Filterable by Road Name, Authority, Road Type, Road Condition, Survey Date, and Day/Night capture
  • Original and AI-annotated photograph available for every inspection point, with frame-by-frame navigation
  • High / Medium / Low severity legend with a dedicated “No Defect” category for clean stretches
IRC-Mapped Findings Register

Every observation linked to a code, not left as a general note

  • Each finding tagged to the specific IRC provision it relates to, rather than recorded as an unreferenced observation
  • Supports direct citation in maintenance work orders and budget submissions
  • Consistent tagging across the full corridor, enabling aggregation by IRC category for planning purposes
  • Structured to align with formal Road Safety Audit documentation conventions
IRC 67 Signage Compliance Assessment

A dedicated review of the corridor's signage against code

  • Systematic evaluation of road signage against IRC 67 requirements along the full 60 km stretch
  • Flags missing, damaged, or non-compliant signage by precise location
  • Separated from general defect detection so signage-specific budget can be scoped on its own
  • Supports prioritisation ahead of any signage renewal or replacement programme
IRC 35 Road Marking Compliance Assessment

A dedicated review of markings against code

  • Systematic evaluation of road markings against IRC 35 requirements along the full corridor
  • Identifies faded, missing, or non-compliant marking by location
  • Delivered as a standalone assessment, separate from general pavement condition
  • Supports scoping a remarking programme with code-referenced justification
Video Evidence & AI-Annotated Photographic Record

The visual layer behind every finding

  • Continuous dashcam footage retained for the full corridor, with GPS, speed, and timestamp embedded in every frame
  • Original and AI-annotated views toggle-able for any inspection point
  • Play and frame-navigation controls allow direct review of the footage around any flagged finding
  • Supports field verification without requiring a team to re-drive the corridor
OUTCOMES & IMPACT

What the Survey Delivered Beyond a Defect Count

The Radhanpur–Chanasma survey gave the road authority a safety picture it did not have before  one that is geo-tagged, risk-classified, and directly referenced against the codes its own engineers already work to.

A Repeatable Alternative to the Manual Safety Audit

The same AI-based methodology can be re-run on this corridor, or extended to others, at a fraction of the time and cost of mobilising a full expert-panel Road Safety Audit.

Crash-Risk Hotspots Identified With GPS Precision

The two crash-barrier clusters near water crossings are now exact, field-verifiable locations  not a general sense that 'the road needs attention.'

Signage and Marking Gaps Quantified, Not Guessed At

IRC 67 and IRC 35 compliance are now assessed on their own, code-referenced terms, giving the authority a defensible basis to scope signage and remarking budgets separately from general maintenance.

An Evidence Base for Safety Budget Prioritisation

Every finding  from crash barrier damage to shoulder vegetation growth  comes with a severity tier and a location, letting the authority sequence spend by actual risk rather than by which section was inspected most recently

FAQ
What Road Authorities and Safety Engineers Ask

For state and district road authorities, PWD safety cells, and engineering teams evaluating AI-based road safety survey methodology.

Q1. What was the scope of the Radhanpur–Chanasma road safety survey?

RoadVision AI surveyed the full 60 km Radhanpur–Chanasma Road in Gujarat using a vehicle-mounted dashcam rig. The survey covered the villages of Radhanpur, Amirpura, Gochanad, Daudpur, Baspa, Varana, Jalalabad, and Sami, identifying and geo-tagging road safety concerns, classifying each by risk, and mapping findings to the relevant IRC provisions, including dedicated IRC 67 signage and IRC 35 marking compliance assessments.

Q2. How does the AI classify findings as High, Medium, or Low risk?

Each detected finding  a damaged crash barrier, a signage gap, a marking deficiency, or a shoulder condition issue  is classified by RoadVision AI's computer vision engine based on the type and severity of the defect and its likely safety consequence. High-severity findings, such as damaged crash barriers near water crossings, are flagged for priority action, while lower-severity findings such as shoulder vegetation growth are logged for routine maintenance scheduling.

Q3. What do the IRC 67 and IRC 35 assessments specifically cover?

IRC 67 governs road signage  its design, placement, and visibility requirements —while IRC 35 governs road markings. Rather than folding these into a general defect list, RoadVision AI runs each as a dedicated compliance evaluation across the full corridor, flagging specific signage or marking deficiencies against the applicable clause so the road authority can scope and budget each work stream independently.

Q4. How is this different from a traditional manual Road Safety Audit (RSA)?

A traditional RSA relies on a multi-disciplinary expert panel physically walking or driving the corridor  thorough, but slow and expensive to mobilise, which is why many district-connecting roads go long periods without one. This AI-based survey covers the full 60 km corridor via vehicle-mounted dashcam capture, processes the footage through an AI engine for consistent, code-referenced classification, and can be repeated far more frequently than a full-panel audit, without replacing the value of periodic expert review.

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