Data Driven Bridge Deck Deterioration Modeling and Maintenance Intervention Scheduling
type: CreativeWork
description: Majority of over 617,000 bridges across the United States are significantly impacted by environmental factors, aging materials, and heavy traffic loads. According to the 2021 Infrastructure Report, nearly 231,000 bridges require repair or preservation work, with 46,154 (7.5%) being classified as structurally deficient, thereby posing risks for mor than 178 million daily trips across these bridges. Despite recent improvements, 42% of U.S. bridges are at least 50 years old, underscoring an urgent need for increased investment to meet repair demands. The nation’s backlog of bridge repairs is estimated at $125 billion, with a 58% increase in annual spending required to address deteriorating conditions adequately. Traditional bridge deterioration models required by bridge management systems often suffer from deterministic assumptions, inspector subjectivity, and data encoding errors, which can lead to inconsistent or biased assessments. These challenges are compounded by the high levels of censoring in bridge inspection data, particularly in the National Bridge Inventory (NBI), where observations (i.e., inspections) are often limited to specific time windows rather than the full lifecycle of a structure. These limitations hinder accurate deterioration modeling and typically result in reactive maintenance strategies, where interventions are delayed until significant deterioration occurs. This research introduces an innovative framework to enhance bridge deterioration modeling by addressing the challenges posed by high censoring in the National Bridge Inventory (NBI) inspection data. Additionally, Artificial Intelligence (AI) methods are explored and compared to traditional models used by Departments of Transportation (DOTs). The study also investigates the effects of various maintenance interventions across each NBI rating for optimized maintenance scheduling. Leveraging extensive bridge datasets, including historical inspection records and environmental factors, this dat…
abstract: Majority of over 617,000 bridges across the United States are significantly impacted by environmental factors, aging materials, and heavy traffic loads. According to the 2021 Infrastructure Report, nearly 231,000 bridges require repair or preservation work, with 46,154 (7.5%) being classified as structurally deficient, thereby posing risks for mor than 178 million daily trips across these bridges. Despite recent improvements, 42% of U.S. bridges are at least 50 years old, underscoring an urgent need for increased investment to meet repair demands. The nation’s backlog of bridge repairs is estimated at $125 billion, with a 58% increase in annual spending required to address deteriorating conditions adequately. Traditional bridge deterioration models required by bridge management systems often suffer from deterministic assumptions, inspector subjectivity, and data encoding errors, which can lead to inconsistent or biased assessments. These challenges are compounded by the high levels of censoring in bridge inspection data, particularly in the National Bridge Inventory (NBI), where observations (i.e., inspections) are often limited to specific time windows rather than the full lifecycle of a structure. These limitations hinder accurate deterioration modeling and typically result in reactive maintenance strategies, where interventions are delayed until significant deterioration occurs. This research introduces an innovative framework to enhance bridge deterioration modeling by addressing the challenges posed by high censoring in the National Bridge Inventory (NBI) inspection data. Additionally, Artificial Intelligence (AI) methods are explored and compared to traditional models used by Departments of Transportation (DOTs). The study also investigates the effects of various maintenance interventions across each NBI rating for optimized maintenance scheduling. Leveraging extensive bridge datasets, including historical inspection records and environmental factors, this dat…
author: Kumar, Deepak
keywords: Bridge Deterioration Modeling, National Bridge Inventory (NBI), Weibull Analysis, AFT-Weibull Analysis, Censoring, Survival Analysis, Artificial Intelligence, Large Language Modeling, Bridge Inspection, Maintenance Scheduling, Civil Engineering, Operational Research, Risk Analysis, Transportation Engineering
date published: 2025-01-01T08:00:00Z
date modified: 2026-07-24T01:58:13Z
provider: City University of New York - City College
publisher: Networked Digital Library of Theses and Dissertations
type: WebPage
source organization: City University of New York - City College