PSI - Issue 78

Debora Dei Rocini et al. / Procedia Structural Integrity 78 (2026) 1310–1317

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The core of the VISIT method involves analyzing inspected infrastructures by segments, with tailored assessment procedures for different assets within each segment. It employs a systematic analysis of predefined semeiotic parameters, which are specific elements or characteristics considered by the inspector to assess an asset's condition. Inspectors assign a warning level through pre-coded procedures to generate a situational chart, ensuring uniform judgment criteria and consistent evaluation across various inspectors. VISIT aims to provide ANSFISA with a pre-codified inspection methodology for supervisory purposes, offering a comprehensive overview of safety outcomes and highlighting areas needing safety improvement interventions categorized by severity and urgency. This also includes integrating data from safety inspections into a centralized framework to inform context-based strategies and intervention requests. The methodology has been successfully tested on roads using equipped vehicles, on bridges using drones, and in tunnels with special equipment. These applications confirmed that VISIT provides high inspection details without requiring significant traffic restrictions or expensive equipment, while ensuring safety for both users and inspectors. 3. The VISIT inspector kit The VISIT methodology, while fundamentally visual, is significantly enhanced by a specialized technical inspection kit that provides advanced capabilities for data acquisition and analysis without relying on traditional, often time-consuming, instrumental measurements. This kit is meticulously assembled to provide inspectors with robust tools for rapid and detailed visual assessment of transport infrastructures.

Fig. 2 – Activity timeline and VISIT Kit component utilization

Key components of the VISIT Inspector Kit include:

• Samsung Galaxy Tab Active4 Pro 5G 128GB tablet: this rugged device serves for on-site data acquisition. • Sony Alpha 7 IV camera body with a 28-70 mm zoom lens and an additional Tamron 18-300 lens: these enable inspectors to capture clear, magnified images of structural elements from a safe distance. • See-Top Fbr 170-850 telescopic pole: this is included for close-up inspection of elevated or hard-to reach components.