What question did this study set out to answer?

To develop a quantitative, risk-informed framework that optimizes periodic bridge inspection and rehabilitation schedules using empirical asset data.

August 14, 2026Structure and Infrastructure Engineering

Optimising a periodic bridge inspection program: a risk-informed approach using inventory-based deterioration models

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Authors

WCWang ChenMetropolitan University XYXian‐Xun YuanMetropolitan University

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Implication

Computational modeling reveals optimal bridge inspection intervals across network inventories, indicating improved resource allocation over fixed schedules.

Key Points

To develop a quantitative, risk-informed framework that optimizes periodic bridge inspection and rehabilitation schedules using empirical asset data.
Built an inventory-level stochastic deterioration model incorporating bridge attributes using a large provincial bridge inventory database from Ontario.
Formulated a probabilistic lifecycle cost optimization framework to determine optimal joint inspection and maintenance intervals.
Applied machine learning-based clustering using decision-tree regression to derive interpretable decision rules grouped by bridge attributes, supported by sensitivity analyses.
Established tailored, condition-based inspection intervals replacing standard fixed two-year schedules across diverse bridge inventory subsets.
Generated interpretable decision-tree rules mapping bridge attributes directly to optimal inspection policies with confirmed robustness under sensitivity testing.

Cite This Study

Chen et al. (2026) studied this question.

synapsesocial.com/papers/6a7ec6eab70b84ec8b913007 https://doi.org/10.1080/15732479.2026.2715468

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Implication

Computational modeling reveals optimal bridge inspection intervals across network inventories, indicating improved resource allocation over fixed schedules.

Optimising a periodic bridge inspection program: a risk-informed approach using inventory-based deterioration models

Discussion

Member takes

Implication

Key Points

Cite This Study

Optimising a periodic bridge inspection program: a risk-informed approach using inventory-based deterioration models

Discussion

Member takes

Implication

Key Points

Cite This Study

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