Sustainability-Informed Bridge Ranking under Scour Based on Transportation Network Performance and Multiattribute Utility

Liu, Liang; Frangopol, Dan M.; Mondoro, Alysson; Yang, David Y.

doi:10.1061/(asce)be.1943-5592.0001296

Cited by 39 publications

(14 citation statements)

References 31 publications

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“…With regards to indirect consequences, while there are many tools available to assess the impact of bridge closure on the traffic flow in a network (see e.g. Liu et al, 2018;Lamb et al, 2019), there is a current lack of data on the high repair costs and downtimes associated with various bridge failure modes (Fig. 3).…”

Section: Vulnerability Of Various Bridge Typologiesmentioning

confidence: 99%

Invited perspectives: Challenges and future directions in improving bridge flood resilience

Tubaldi

White

Patelli

et al. 2022

Nat. Hazards Earth Syst. Sci.

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Abstract. Bridges are critical-infrastructure components of road and rail transport networks. A large number of these critical assets cross or are adjacent to waterways and floodplains and are therefore exposed to flood actions such as scour, hydrodynamic loading, and inundation, all of which are exacerbated by debris accumulations. These stressors are widely recognized as responsible for the vast majority of bridge failures around the world, and they are expected to be exacerbated due to climate change. While efforts have been made to increase the robustness of bridges to the flood hazard, many scientific and technical gaps remain. These gaps were explored during an expert workshop that took place in April 2021 with the participation of academics, consultants, and decision makers operating mainly in the United Kingdom and specializing in the fields of bridge risk assessment and management and flood resilience. The objective of the workshop was to identify and prioritize the most urgent and significant impediments to bridge flood resilience. In particular, the following issues, established at different levels and scales of bridge flood resilience, were identified and analysed in depth: (i) characterization of the effects of floods on different bridge typologies, (ii) uncertainties in formulae for scour depth assessment, (iii) evaluation of consequences of damage, (iv) recovery process after flood damage, (v) decision-making under uncertainty for flood-critical bridges, and (vi) use of event forecasting and monitoring data for increasing the reliability of bridge flood risk estimations. These issues are discussed in this paper to inform other researchers and stakeholders worldwide, guide the directions of future research in the field, and influence policies for risk mitigation and rapid response to flood warnings, ultimately increasing bridge resilience.

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Section: Vulnerability Of Various Bridge Typologiesmentioning

confidence: 99%

Invited perspectives: Challenges and future directions in improving bridge flood resilience

Tubaldi

White

Patelli

et al. 2022

Nat. Hazards Earth Syst. Sci.

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“…The environmental cost usually includes evaluation of climate change potential in terms of greenhouse gas emissions (García-Segura et al, 2017), energy consumption (Sabatino et al, 2015), as well as project-related pollution to soil, water, and air (Wang et al, 2019). Although there is a lack of consensus on how to conduct sustainability-informed asset management, multi-attribute utility theory has proven to be an effective tool to combine all three aspects of sustainability based on the risk perception and risk attitude of decision-makers (Liu et al, 2018;Sabatino et al, 2015;.…”

Section: Cost-benefit Analysis Of Load Testingmentioning

confidence: 99%

Bridge Load Testing: State-of-the-Practice

Alampalli¹,

Frangopol

Grimson³

et al. 2021

J. Bridge Eng.

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Bridge load testing can answer a variety of questions about bridge behavior that cannot be answered otherwise. The current governing codes and guidelines for bridge load testing in the USA are the 1998 NCHRP Manual for Bridge Rating through Load Testing and Chapter 8 of the AASHTO Manual for Bridge Evaluation. Over the past two decades, the practice of load testing has evolved and its intersections with other fields have expanded. The outcomes of load tests have been used to keep bridges open cost-effectively without unnecessarily restricting legal loads, when theoretical analyses cannot yield insights representative of in-service performance. Load testing data can be further used to develop field-verified finite element models of tested bridges to understand these structures better. Additionally, structural reliability concepts can be used to estimate the probability of failure based on the results of load tests, and non-contact measurement techniques capturing large surfaces of bridges allow for better monitoring of structural responses. Given these developments, a new TRB Circular, Primer on Bridge Load Testing, has been developed. This document contains new proposals for interpreting the results of diagnostic load tests, loading protocols, and the determination of bridge load ratings based on the results of proof load tests. In addition, included provisions provide an estimation of the resulting reliability index and the remaining service life of a bridge based on load testing results. The benefit of load testing is illustrated based on a cost-benefit analysis. The current state-of-the-practice has demonstrated that load testing is an effective means for answering many important questions regarding bridge behavior that are critical to decisions on bridge maintenance or replacement. Load testing has evolved over its history, and the newly developed TRB Circular reflects this evolution in a practical way. -3-CE database subject headings bridge maintenance; bridge tests; codes and guidelines; instrumentation; field tests; load testing

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“…to simulate how the traffic flows through an impaired network with closed links, while satisfying both demand and capacity (e.g. (Liu et al 2018)). Most approaches found in literature have used macroscopic traffic models for this purpose.…”

Section: Introductionmentioning

confidence: 99%

The Indirect Impact of Flooding on the Road Transport Network: A Case Study of Santar\'em Region in Portugal

Shahdani¹,

Santamaria-Ariza²,

Coelho³

et al. 2021

Proceedings of the 31st European Safety and Reliability Conference (ESREL 2021)

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The indirect impacts of flooding on transportation networks include, among others, consequences of the service disruption for the users. Indirect impacts are of a wider scale and with a longer incidence in time than direct impacts. The key aspect for the quantification of indirect impacts of flooding is the assessment of the disruption of the transportation service, with social and economic consequences. In this work, a traffic model for a pilot zone is constructed for accurate quantification of the functionality of the network after the failure of infrastructure components such as road segments and bridges. A mesoscopic simulation, which is capable of building a road network model, assigning trip paths with the impact of road closures, and evaluating travel time and vehicle volume redistribution in a given disruption scenario, was used to identify the traffic disruption in the face of flood events. Modelling outputs from a case study in the Santarém region of Portugal indicate which roads are more congested in a day. A comparison between the baseline and a flood scenario yields the impacts of that flood on traffic, estimated in terms of additional travel times and travel distances. Therefore, simulating and mapping the congestion can largely facilitate the identification of vulnerable links.

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Sustainability-Informed Bridge Ranking under Scour Based on Transportation Network Performance and Multiattribute Utility

Cited by 39 publications

References 31 publications

Invited perspectives: Challenges and future directions in improving bridge flood resilience

Invited perspectives: Challenges and future directions in improving bridge flood resilience

Bridge Load Testing: State-of-the-Practice

The Indirect Impact of Flooding on the Road Transport Network: A Case Study of Santar\'em Region in Portugal

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