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DC8

Proactive risk assessment and infrastructure safety management

Júlia Alves Porto
Safer mobility
for a brighter
tomorrow
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♧   Work Package 6
AI for Proactive Infrastructure Safety Management

Research at a glance

Over the past two years, I have developed expertise in training and applying AI-based models, particularly Computer Vision (CV) ones, alongside geospatial tools within a road safety pipeline. Certain attributes, such as pavement defects, benefit from well-developed automated extraction methods, yet remain underutilized in predictive transportation research. Infrastructure and environmental attributes have rarely been linked to Surrogate Measures of Safety. Our findings indicate that those attributes contribute modestly to harsh-event prediction relative to traffic and behavioral metrics, though they offer valuable supplementary insight. Additionally, automated labeling does not outperform manual labeling in predictive power, but it can reveal overlooked interactions among attributes.

In the following months, we aim to leverage CV models to extract attributes from open-source image databases and construct a complexity index. This index will be modeled against HE at intersections in central areas of Greece, with the goal of identifying which attributes most significantly affect driving smoothness.

Research objectives

  • Create an AI framework to process, harmonise, analyse and model an array of different available datasets and provide outputs in the form of risk mapping and network-level evaluations.
  • Develop new AI algorithms for road attribute collection, along with methodologies to assess and quantify their accuracies, suitable for network applications and including hybrid, e.g., manually collected data.
  • Use the AI-augmented dataset creation effort for a suitable working methodology for the generation of hybrid road attribute data and enhanced proactive risk mapping.
  • Model the relationship between infrastructure and environment attributes with single-vehicle surrogate measures of safety, i.e., harsh events.

Conference contributions

TitleConferenceDateLink
Training a YOLO-based model for speed limit sign recognitionInternational Symposium Navigating the Future of Traffic Management
Road segmentation made simple: A practical comparison of segmentation models and post-processing techniques12th International Congress on Transportation Research (ICTR)
Lane Segmentation from Street-Level Imagery via Noisy Label Generation and Contrastive Self-SupervisionTransportation Research Arena (TRA)
Conflict detection and analysis in urban arterial roads of Brasília, Federal District of Brazil, using HD-CCTV monitoring cameras and the YOLO modelRoad Safety and Simulation (RSS)
Are telematics-based hazard levels associated with street-level visual features? A case study of motorway intersectionsRoad Safety and Simulation (RSS)
Weak supervision and fine-tuning with contrastive learning for multiclass lane marking segmentationWorld Conference of Transport Research (WCTR 2026)
Toulouse, France
2026
Comparison of manual and automated infrastructure label extraction for harsh event predictionEuropean Transport Conference (ETC)

Secondments & collaborations

Host organisationPeriodPurposeStatus
OSevenJan – Sep 2026Ongoing
Fred EngineeringFeb – May 2027Upcoming