Browsing Journal of Infrastructure Systems by Title
Now showing items 1-20 of 1209
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3D Scene Reconstruction for Robotic Bridge Inspection
(American Society of Civil Engineers, 2015)This paper provides a comparative study of two methods for reconstructing three-dimensional (3D) scenes from monocular two-dimensional (2D) images with respect to their applicability to robotic civil infrastructure inspection. ... -
A Bootstrap-Based Integer Programming Algorithm for Budget Allocation in Pavement Management Systems
(ASCE, 2021-12-28)Underfunding and the continuous deterioration of pavement assets have been among the major challenges for transportation agencies in the US. These challenges motivate the use of different optimization techniques such as ... -
A Data-Driven Method for Comprehensive Pavement-Condition Ranking
(American Society of Civil Engineers, 2016)State highway agencies need pavement-condition data to select candidates for pavement maintenance and rehabilitation. However, it is a challenge for pavement engineers to simultaneously assess a number of attributes that ... -
A Dynamic Vehicle-Track Interaction Model for Predicting the Track Degradation Process
(American Society of Civil Engineers, 2014)Due to the repeated passage of trains, differential settlements are observed in the vertical direction of the railway tracks. These settlements depend on the platform quality, on the train speed, on the dynamic load, and ... -
A Framework for Transitions in the Built Environment: Insights from Compound Hazards in the COVID-19 Era
(ASCE, 2024/03/01)The COVID-19 era has witnessed numerous successful and unsuccessful attempts to adapt or reconfigure physical, virtual, and hybrid aspects of the built environment in order to mitigate the risks of co-occuring (i.e.,&nbs ... -
A Fuzzy Approach for the Allocation of Risks in Public–Private Partnership Water-Infrastructure Projects in Developing Countries
(American Society of Civil Engineers, 2016) -
A Fuzzy-Based Evaluation of Financial Risks in Build–Own–Operate–Transfer Water Supply Projects
(American Society of Civil Engineers, 2017)The build–own–operate–transfer (BOOT) scheme is widely used for the provision of new bulk water supply. However, this scheme is complex and carries significant financial risks because of the characteristics of the water ... -
A Hybrid Cross-Impact Approach to Predicting Cost Variance of Project Delivery Decisions for Highways
(American Society of Civil Engineers, 2016) -
A Hybrid Recovery Strategy toward Sustainable Infrastructure Systems
(ASCE, 2021-12-23)The occurrence of unpredictable disruptions in infrastructure systems has urged the development of a variety of recovery strategies. Each recovery strategy follows different recovery preferences or criteria, such as the ... -
A Reinforcement Learning Method for Multiasset Roadway Improvement Scheduling Considering Traffic Impacts
(ASCE, 2022/12/01)Maintaining roadway pavements and bridge decks is key to providing high levels of service for road users. However, improvement actions incur downtime. These actions are typically scheduled by asset class, yet implemented ... -
Accounting for Business Adaptations in Economic Disruption Models
(American Society of Civil Engineers, 2019)Current economic models specifically designed for infrastructure outage and disaster situations are attempting to incorporate the ability of businesses to prepare for, adapt to, and recover from, disruptions. Using business ... -
Accounting for Censoring and Unobserved Heterogeneity in Pavement Cracking
(American Society of Civil Engineers, 2015)Most fatigue cracking models in use have been developed using the ordinary least squares (OLS) method. However, fatigue cracking data (or any type of cracking data) consists of censored data since it has a lower limit of ... -
Accounting for Endogeneity in Maintenance Decisions and Overlay Thickness in a Pavement-Roughness Deterioration Model
(American Society of Civil Engineers, 2017)Pavement deterioration models are an important part of any pavement management system. Many of these models suffer from endogeneity bias because of the inclusion of independent variables correlated with unobserved factors, ... -
Accounting for Source Location on the Vulnerability Assessment of Water Distribution Network
(ASCE, 9/1/2021)The vulnerability of water distribution networks (WDNs) to water-main breaks is used for prioritizing pipes in the network for maintenance planning. In this paper, a parameter of graph theory, algebraic connectivity (AC), ... -
Accuracy of Drone-Based Surveys: Structured Evaluation of a UAS-Based Land Survey
(ASCE, 6/1/2021)A recent study concluded that the use of unmanned aerial systems (UAS) could benefit state departments of transportation in four key ways, one of which was the creation of preconstruction surveys. This study investigated ... -
Acoustic Tomographic Imaging of Concrete Infrastructure
(American Society of Civil Engineers, 2000)Acoustic tomography is an established nondestructive evaluation (NDE) technology that can be used to image the interior of large grained building materials such as concrete or masonry. A literature search focusing on ... -
Adaptive Capacity Planning Formulation for Infrastructure Networks
(American Society of Civil Engineers, 2018)This research investigates the adaptive capacity enhancement problem of network systems and proposes a framework for allocating limited resources during the response phase in the aftermath of a disruptive event. The proposed ... -
Adaptive Climate Response Cost Models for Infrastructure
(American Society of Civil Engineers, 2010)The climate in Alaska is changing with temperatures and precipitation increasing, and experts say those changes will continue. The changing climate will, among other kinds of social and economic effects, damage public ... -
Adaptive Optimization and Systematic Probing of Infrastructure System Maintenance Policies under Model Uncertainty
(American Society of Civil Engineers, 2006)We present an application of systematic probing for selecting optimal maintenance, repair, and reconstruction (MR&R) policies for systems of infrastructure facilities under model uncertainty. We use an open-loop feedback ... -
Adaptive Optimization of Infrastructure Maintenance and Inspection Decisions under Performance Model Uncertainty
(American Society of Civil Engineers, 2003)We present an adaptive optimization model to find joint inspection and maintenance policies for infrastructure facilities under performance model uncertainty. The objective in the formulation is to minimize the total ...