13 hasil untuk "Bryan T. Adey"
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Artikel Jurnal
Estimation of traffic flow changes using networks in networks approaches
Abstract Understanding traffic flow in urban areas has great importance and implications from an economic, social and environmental point of view. For this reason, numerous disciplines are working on this topic. Although complex network theory made their appearance in transportation research…
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A real option approach to determine optimal intervention windows for multi-national rail corridors
In this paper, a real option approach to determine the optimal time to execute interventions on rail infrastructure, when it is not known for certain which intervention is to be executed, is presented (i.e. the optimal intervention window). Such an approach is useful in the management of rail…
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Artikel Jurnal Teks lengkap
Modelling the Complex Relationship between Interventions, Interventions Costs and the Service Provided When Evaluating Intervention Programs on Railway Infrastructure Networks
Determining the interventions, e.g., maintenance, renewal, improvement and extension, to be included in an infrastructure program requires the consideration of the asset, intervention, traffic, and network characteristics. This, in turn, requires the development of an appropriate system model…
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Artikel Jurnal
The effect of management decision processes on the management of bridges
It is necessary to execute interventions on bridges to ensure that they continue to provide an adequate level of service. It is necessary to inspect them to ensure that these interventions are timed appropriately. As there are negative impacts associated with both inspections and interventions…
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Artikel Jurnal Teks lengkap
A Network Flow Model Approach to Determining Optimal Intervention Programs for Railway Infrastructure Networks
The determination of the optimal interventions to execute on rail infrastructure networks is a challenging task, due to the many types of objects (e.g., bridges, tracks, and switches), how the objects work together to provide service, and the possible reductions in costs and service disruptions as…
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Artikel Jurnal
Fast-lane for planning cycling infrastructure: On the effectiveness and efficiency of cycling infrastructure planning processes
Timely development of cycling infrastructure is essential to achieving societal goals such as decarbonisation and cyclist traffic safety. However, delays in infrastructure project completion persist across many planning contexts, partly due to the infrastructure planning processes. This paper…
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Artikel Jurnal
An approach to support reference class forecasting when adequate project data are unavailable
This study presents an approach to enhance the effectiveness of Reference Class Forecasting (RCF) in managing cost overruns in large infrastructure projects. RCF performs poorly when adequate reference classes are unavailable. The proposed approach addresses this limitation by adapting reference…
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Artikel Jurnal
Identifying Changes in Bicycle Accident Trends Using GIS and Time Series Information in the City of Zürich
In order to be effective, road safety officers must have a complete overview of the accidents in their area of responsibility, including information pertaining to the location and severity of the accidents, and how the number of accidents are developing over time. Ideally, this information is…
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Artikel Jurnal Teks lengkap
Enhancing Railway Track Intervention Planning: Accounting for Component Interactions and Evolving Failure Risks
This manuscript proposes a methodology to leverage digitalisation to efficiently generate an overview of required condition-based railway track interventions, possession windows, and expected costs for railway networks at the beginning of the intervention planning process. The consistent and…
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Artikel Jurnal
Improving the Estimation of Markov Transition Probabilities Using Mechanistic-Empirical Models
In many current state-of-the-art bridge management systems, Markov models are used for both the prediction of deterioration and the determination of optimal intervention strategies. Although transition probabilities of Markov models are generally estimated using inspection data, it is not uncommon…
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Artikel Jurnal
Prioritizing simulation-based stress tests to assess the resilience of transport systems: a computation-free methodology
Abstract This paper introduces a computation-free method for evaluating and prioritizing simulation-based stress tests for resilience assessment of transport systems. It enables infrastructure managers to efficiently screen and rank stress tests, optimizing the selection process to maximize…
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Artikel Jurnal Teks lengkap
Automated Construction Progress and Quality Monitoring for Commercial Buildings with Unmanned Aerial Systems: An Application Study from Switzerland
Unmanned Aerial Systems (UASs), which have become a key tool in remote sensing in recent years, have also rapidly entered the practice of Architecture, Engineering, Construction, and Operations (AECO). This paper presents an application study of a methodology for monitoring construction progress…
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Artikel Jurnal
Research paradigms and scales of asphalt pavement skid resistance evaluation: A review
Understanding the tire‒road friction system is fundamental for evaluating the skid resistance of asphalt pavements. Literature analysis reveals that the trajectory of tire–road friction research aligns with the evolution of scientific research paradigms: experimental science, theoretical science…