CorridorVision AI: AI-Powered Road Condition Monitoring for Djibouti’s Trade Corridors

Context: Djibouti’s Strategic Role in Regional Trade

The Republic of Djibouti serves as a critical logistics hub for the Horn of Africa. As part of Djibouti Vision 2035, the national development strategy aims to position the country as a regional commercial and logistics center.

Djibouti functions as Ethiopia’s primary maritime access point. The road corridor network managed by DPCR spans 642 kilometers, carrying the majority of freight traffic between Ethiopian markets and Djiboutian port facilities.

These corridors operate under demanding conditions: ambient temperatures regularly exceeding 40°C, frequent sandstorms, and sustained heavy vehicle traffic. These factors accelerate pavement degradation and increase maintenance requirements.

Problem Statement: Limitations of Traditional Inspection Methods

Prior to implementing CorridorVision AI, road condition assessment relied on manual visual inspections. This approach presented several operational challenges:

  • Inconsistent assessment criteria: Visual inspections are inherently subjective. Different engineers’ inspectors may classify the same defect differently, leading to inconsistent maintenance prioritization.
  • Safety exposure: Manual inspections require personnel to work alongside active traffic on corridors.
  • Reactive maintenance cycles: Without systematic early detection, maintenance interventions typically occurred after significant deterioration. Industry research, including World Bank (World Bank, 2005) studies on road asset management, indicates that preventive maintenance can cost substantially less than post-failure rehabilitation.
Road Maintenance Unit Costs
USD/km (Two-lane highway)
Unsealed 2L Highway
Routine • Maintenance
Min277
Max1,740
Mean Cost989
Bituminous 2L Highway
Routine • Maintenance
Min656
Max5,580
Mean Cost2,199
Light Grading
Periodic • Grading
Min51
Max205
Mean Cost110
Heavy Grading
Periodic • Grading
Min323
Max876
Mean Cost522
Regravelling
Periodic • Gravel resurfacing
Min1,997
Max65,038
Mean Cost15,326
Fog Seal
Periodic • Bituminous pavement
Min2,805
Max15,783
Mean Cost8,946
Preventive Treatment
Periodic • Unsealed
Min2,009
Max6,965
Mean Cost4,266
Slurry / Cape Seal
Periodic • Surface treatment
Min4,452
Max27,520
Mean Cost9,780
Single Surface Treatment
Periodic • Surface treatment
Min5,295
Max38,607
Mean Cost18,937
Double Surface Treatment
Periodic • Surface treatment
Min10,684
Max45,277
Mean Cost27,039
Overlay < 40 mm
Periodic • Asphalt resurfacing
Min12,878
Max82,320
Mean Cost38,095
Overlay 40–59 mm
Periodic • Asphalt resurfacing
Min21,021
Max126,131
Mean Cost68,713
Road Maintenance Unit Costs (USD/km)
Two-lane highway reference costs by work type
Class Work Type Activity Min Max Mean
Routine Routine maintenance Unsealed 2L Highway 277 1,740 989
Bituminous 2L Highway 656 5,580 2,199
Periodic Grading Light Grading 51 205 110
Heavy Grading 323 876 522
Gravel resurfacing Regravelling 1,997 65,038 15,326
Bituminous pavement Fog Seal 2,805 15,783 8,946
Unsealed Preventive Treatment 2,009 6,965 4,266
Surface treatment Slurry / Cape Seal 4,452 27,520 9,780
Single Surface Treatment 5,295 38,607 18,937
Double Surface Treatment 10,684 45,277 27,039
Asphalt resurfacing Overlay < 40 mm 12,878 82,320 38,095
Overlay 40–59 mm 21,021 126,131 68,713

This reactive approach resulted in a data gap: operational activity was documented, but structured, actionable condition data was not systematically captured.

Technical Solution: CorridorVision AI System Architecture

To address these challenges, Djibouti Ports Corridor Road SA (DPCR) developed CorridorVision AI, an automated road condition monitoring system. The solution prioritizes reliability and cost-effectiveness over specialized equipment.

Data Acquisition

The vehicles are equipped with high-performance 4K/UHD imaging systems, featuring professional-grade action and dash cameras selected for their superior clarity. These devices integrate advanced image stabilization to eliminate motion blur and are specifically engineered for thermal durability, ensuring seamless operation and reliability even in extreme high-temperature environments.

Data Processing and Annotation

The collected video footage is processed and segmented into individual frames. These images are then uploaded to Labelbox, a data annotation platform where trained annotators classify and label pavement defects—including potholes, cracking patterns, and rutting. This human-supervised labeling process creates high-quality training datasets essential for model accuracy.

Model Training

The annotated datasets are used to train a YOLOv8 (You Only Look Once, version 8) object detection model. YOLOv8 is a real-time detection algorithm capable of identifying and localizing multiple defect types within a single frame. The model is iteratively refined as new annotated data becomes available, improving detection accuracy over time.

Deployment

The trained model is deployed on RapidCanvas, an AI platform that hosts the CorridorVision AI application. The platform processes new video data, automatically detects and classifies road defects, and associates each detection with GPS coordinates for spatial mapping and maintenance planning.

Following the initial data processing, the CorridorVision AI project has already covered over 844 km, successfully identifying 2,174 detections across 4 selected defect types. Despite demanding operational conditions, with a mean altitude of 399 m and GoPro internal temperatures peaking at 79.11°C, the systems maintained full functionality, proving the resilience and reliability of our high-resolution capture setup in extreme environments.

Expected Outcomes 

CorridorVision AI is currently in deployment and calibration. As the system matures, DPCR anticipates the following operational improvements:

  • Shift toward preventive maintenance: Early defect detection should enable intervention before minor issues develop into major structural failures, potentially reducing long-term rehabilitation costs.
  • Improved resource allocation: Georeferenced defect data allows maintenance teams to prioritize interventions based on defect severity and location, rather than responding to reported incidents.
  • Historical condition tracking: The system creates a time-series record of road conditions, supporting analysis of degradation patterns and informing infrastructure planning and budgeting.
  • Reduced safety risk: Automated video-based monitoring minimizes the need for personnel to conduct inspections in active traffic lanes.

Conclusion

CorridorVision AI demonstrates that effective infrastructure monitoring can be achieved using commercially available hardware combined with machine learning. By replacing manual inspection with automated detection and classification, DPCR is building the foundation for a data-driven approach to road asset management.

As the system accumulates operational data and the detection model improves through continued training, this approach may serve as a reference for similar infrastructure challenges in the region.

Bibliographie

  1. World Bank. (2005). Why Road Maintenance is Important and How to Get it Done. Transport Note No. TRN-4. Washington, D.C.: The World Bank.
    https://documents1.worldbank.org/curated/en/971161468314094302/pdf/339250rev.pdf
  2. Jocher, G., Chaurasia, A., & Qiu, J. (2023). Ultralytics YOLOv8. GitHub repository.
    https://github.com/ultralytics/ultralytics
  3. Labelbox. (2024). Labelbox: The leading training data platform for enterprise AI.
    https://labelbox.com/
  4. RapidCanvas. (2024). RapidCanvas AI Platform.
    https://rapidcanvas.ai/