Tom Logan
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View article: Computationally Assessing the Effect of Dam Operation on Flood Hazard
Computationally Assessing the Effect of Dam Operation on Flood Hazard Open
Flood protection assets such as dams are increasingly seen as part of a larger system, but the complexity of dam management, unclear communication, and operational misunderstandings in operational protocols can lead to unnecessary downstre…
View article: Investigating the Condition and Flood Effects of Undocumented Levees, A Case Study Within the Waimea Floodplain
Investigating the Condition and Flood Effects of Undocumented Levees, A Case Study Within the Waimea Floodplain Open
Levees play a crucial role in flood protection, but globally, there is a need for more knowledge about levee networks and their flood routing effects. Without complete knowledge, the question arises: ‘What is the flood risk associated with…
View article: Distributional justice and climate risk assessment: An analysis of disparities within direct and indirect risk
Distributional justice and climate risk assessment: An analysis of disparities within direct and indirect risk Open
Climate change and natural hazard risk assessments often overlook indirect impacts, leading to a limited understanding of the full extent of risk and the disparities in its distribution across populations. This study investigates distribut…
View article: Database and optimized machine learning prediction of the deteriorated response of corroded reinforced concrete beams
Database and optimized machine learning prediction of the deteriorated response of corroded reinforced concrete beams Open
This research introduces an extensive database aggregating 54 experimental programs with 804 test specimens and 45 input parameters, investigating the implications of chloride-induced corrosion on the deteriorated mechanical response of co…
View article: Shifting Islands: How weather conditions and urban form shape the spatiotemporal character of Baltimore's urban heat island
Shifting Islands: How weather conditions and urban form shape the spatiotemporal character of Baltimore's urban heat island Open
The combined effects of climate change and urban expansion are elevating urban temperatures, amplifying health risks, and increasing summertime energy demand. Effective heat reduction and adaptation strategies rely on a thorough understand…
View article: Experimental testing and predictive machine learning to determine the mechanical characteristics of corroded reinforcing steel
Experimental testing and predictive machine learning to determine the mechanical characteristics of corroded reinforcing steel Open
Chloride-induced deterioration of reinforcing steel bars has become a densely researched topic over the past several decades because of the severe ramifications to the structural reliability of aging infrastructure. The ever-growing volume…
View article: A framework for modelling the probability of flooding under levee breaching
A framework for modelling the probability of flooding under levee breaching Open
Levees aim to provide protection during floods, however, these structures can breach, causing significant damage. Flood maps that include levee breaching are often limited to deterministic methods. Where probabilistic breaching is done, it…
View article: Hundreds of grocery outlets needed across the United States to achieve walkable cities
Hundreds of grocery outlets needed across the United States to achieve walkable cities Open
The notion of the $x$-minute city is again popular in urban planning, but the practical implications of developing walkable neighborhoods have not been rigorously explored. What is the scale of the challenge that cities needing to retrofit…
View article: A scalable optimization approach for equitable facility location: Methodology and transportation applications
A scalable optimization approach for equitable facility location: Methodology and transportation applications Open
Efficient and equitable access to essential services, such as healthcare, food, and education, is an important goal in urban planning, public policy, and transport logistics. However, existing facility location models often do not scale we…
View article: Capturing cascading consequences is required to reflect risk from climate change and natural hazards
Capturing cascading consequences is required to reflect risk from climate change and natural hazards Open
Climate change and natural hazards present a major risk to individuals and communities; however, the current quantitative risk assessment methodologies struggle to capture the wider consequences that arise from society’s complex interconne…
View article: A new mapping tool to visualise critical infrastructure levels of service following a major earthquake
A new mapping tool to visualise critical infrastructure levels of service following a major earthquake Open
How can emergency management teams communicate to potentially impacted communities what a major event causing infrastructure outages might mean for them, and what they can do to prepare? In this paper we describe the process of creating a …
View article: Demographics and risk of isolation due to sea level rise in the United States
Demographics and risk of isolation due to sea level rise in the United States Open
Within coastal communities, sea level rise (SLR) will result in widespread intermittent flooding and long-term inundation. Inundation effects will be evident, but isolation that arises from the loss of accessibility to critical services du…
View article: Isolation: Revising the estimated risk of sea-level rise
Isolation: Revising the estimated risk of sea-level rise Open
The typical displacement metric for sea-level rise adaptation planning is parcel inundation. However, this metric does not fully capture the wider cascading or indirect effects of sea-level rise. To address this, we propose the considerati…
View article: Integrating Equity Considerations into Agent-Based Modeling: A Conceptual Framework and Practical Guidance
Integrating Equity Considerations into Agent-Based Modeling: A Conceptual Framework and Practical Guidance Open
Advancing equity is a complex challenge for society, science, and policy. Agent-based models are
\nincreasingly used as scientific tools to advance understanding of systems, inform decision-making, and share
\nknowledge. Yet, equity has no…
View article: The Role of Time in Risk and Risk Analysis: Implications for Resilience, Sustainability, and Management
The Role of Time in Risk and Risk Analysis: Implications for Resilience, Sustainability, and Management Open
There is a persistent misconception that risk analysis is only suited for considering the immediate consequences of an event. Such a limitation would make risk analysis unsuitable for many challenges, including resilience, sustainability, …