Road maintenance is essential for preserving pavement health and ensuring a safe, seamless travel experience. Yet it is inherently risky—both for the workforce operating in constrained spaces and for road users navigating temporary diversions. As India expands and upgrades its road network, the importance of structured traffic control during maintenance cannot be overstated.
This is where IRC 67 road safety standards play a pivotal role, providing a rigorous framework for temporary signage, markings, and work-zone safety elements. When supported by modern technologies such as RoadVision AI, agencies can ensure faster compliance and smarter road condition monitoring through AI-powered road inspection systems.
Maintenance zones, when poorly managed, can quickly become accident hotspots. Insufficient warnings, inadequate night visibility, and poorly designed diversions often confuse drivers—especially on high-speed corridors. As the saying goes, “A stitch in time saves nine.” Proper safety deployment prevents accidents before they occur.
Effective traffic control ensures:
Predictable driver movement
Safe working space for maintenance crews
Minimal disruption to traffic flow
Compliance with national safety regulations
Using AI-based road defect detection platforms allows engineers to identify high-risk work zones early and plan appropriate safety measures.
IRC 67 outlines structured requirements for signage placement, channelisation devices, traffic management, and temporary markings used during road repair operations.
Temporary warning signs must be placed far enough in advance to allow drivers adequate reaction time.
Urban Roads: Minimum 50 m before the work zone
Highways: 100–200 m depending on traffic speed
All signs must be:
Retro-reflective
Clean and legible
Appropriately sized for the road classification
High-resolution road monitoring through AI road safety inspection tools helps determine ideal sign placement locations.
Proper channelisation devices guide traffic safely through maintenance zones.
IRC 67 recommends using:
Traffic cones
Bollards
Tubular markers
Barricades with reflective sheeting
These devices form lane tapers, protect workspaces, and guide vehicles through diversions.
Night-time visibility can be enhanced with:
Blinking warning lamps
Solar-powered flashers
Reflective safety tapes
Spacing depends on:
Road width
Traffic speed
Type of maintenance activity
Temporary pavement markings help guide vehicles during lane shifts or diversions.
IRC 67 allows the use of:
Removable adhesive tapes
Temporary traffic paints
Reflective lane tapes
These markings must remain visible under traffic but be removable once the maintenance activity is completed.
Advanced AI pavement monitoring platforms help engineers analyse road surface changes and determine when temporary markings are necessary.
Speed control is essential for reducing accident risk within maintenance zones.
IRC 67 recommends the use of:
Speed restriction signs
“Men at Work” warning boards
“Loose Gravel” or “Slippery Road” signs
Variable Message Signs (VMS) where applicable
These warnings help drivers slow down and prepare for temporary road conditions.
Traffic insights gathered from AI roadside asset inventory systems support accurate planning of these control measures.
While IRC 67 provides the regulatory framework, intelligent technologies help improve real-world execution.
RoadVision AI analyses road geometry, traffic speeds, and pavement defects to identify locations where advance safety warnings are required.
The platform digitally maps:
Temporary diversion routes
Work zone boundaries
Traffic control device placement
This improves planning accuracy and ensures safety compliance.
RoadVision AI automatically generates reports verifying that maintenance zones follow IRC safety standards, helping agencies maintain audit-ready documentation through AI-enabled road monitoring systems.
Despite clear guidelines, several practical challenges affect real-world implementation.
Signs may be missing, poorly positioned, or damaged due to weather or traffic.
Inadequate reflective materials or lighting can compromise safety for workers and drivers.
Static safety plans often fail to account for changing traffic conditions or unexpected hazards.
Traditional inspections can be slow and inconsistent, increasing the likelihood of overlooked safety gaps.
Digital inspection tools help bridge these gaps by providing continuous monitoring and faster detection of safety issues.
IRC 67 provides the essential framework for maintaining safety during road repair and maintenance operations. When implemented properly, it ensures predictable traffic behaviour and protects workers operating in challenging environments.
However, as traffic volumes increase and road networks expand, traditional methods alone are no longer sufficient. By integrating intelligent solutions such as RoadVision AI road safety analytics platforms, agencies can automate inspections, optimise work-zone safety planning, and maintain compliance with national standards.
In today’s rapidly evolving infrastructure environment, “forewarned is forearmed.” Combining IRC 67 safety guidelines with AI-driven road monitoring technology ensures safer maintenance operations and builds smarter, more resilient road networks across India.
IRC Code 67 specifies requirements for temporary road signs, markings, and traffic control devices to ensure safety during road maintenance.
RoadVision AI uses AI and computer vision to detect defects and recommend optimized placement of IRC 67-compliant traffic control devices.
As per IRC 67, temporary edge lines, lane arrows, and chevron markings are used, which RoadVision AI can digitally overlay for planning.
The Autonomous Road Engineer
AI-powered road condition monitoring, asset management, & infrastructure intelligence helping agencies move from reactive maintenance to predictive road management.
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