Searched for: author:"Walker, W.E."
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Kok, M. (author), van de Riet, O. (author), Walker, W.E. (author)
Here we examine whether a study conducted 25 years ago (1992) would have had different conclusions if concepts and analytical methods developed since then had been used. The 1992 problem was to identify a strategy for reducing flood risk in the Netherlands by, for example, strengthening the river dikes against the risk of flooding. Since then,...
journal article 2019
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Walker, W.E. (author), Marchau, Vincent (author), Bloemen, Pieter (author), Lawrence, Judy (author), Lempert, Robert (author), Kwakkel, J.H. (author)
Glynn et al. (2017, https://doi.org/10.1002/2016EF000487) note the importance of engaging stakeholders in the process of public policymaking and analysis. In particular, they highlight the central role biases, beliefs, heuristics, and values play in such engagement. However, the framework they propose neglects uncertainty, which significantly...
journal article 2018
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van Dorsser, Cornelis (author), Walker, W.E. (author), Taneja, P. (author), Marchau, Vincent A.W.J. (author)
Policymakers need to make policies for unknown and uncertain futures. Researchers in the futures field have a great deal to contribute to the policymaking process. But, futures research is often neglected as an element of policymaking. The aim of this paper is to improve the link between futures research and policymaking. More specifically,...
journal article 2018
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Kwakkel, J.H. (author), Haasnoot, M. (author), Walker, W.E. (author)
A variety of model-based approaches for supporting decision-making under deep uncertainty have been suggested, but they are rarely compared and contrasted. In this paper, we compare Robust Decision-Making with Dynamic Adaptive Policy Pathways. We apply both to a hypothetical case inspired by a river reach in the Rhine Delta of the Netherlands...
journal article 2016
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Walker, W.E. (author), Marchau, V.A.W.J. (author)
other 2016
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Walker, W.E. (author)
other 2016
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Kwakkel, J.H. (author), Haasnoot, M. (author), Walker, W.E. (author)
journal article 2016
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Walker, W.E. (author)
Much policy advice is formulated implicitly assuming that the future can be predicted. A static policy is developed using a single ‘most likely’ future, often based on the extrapolation of trends; or a static ‘robust’ policy is developed that will produce acceptable outcomes in a range of plausible future worlds. However, if the future turns out...
journal article 2015
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Kwakkel, J.H. (author), Haasnoot, M. (author), Walker, W.E. (author)
Sustainable water management in a changing environment full of uncertainty is profoundly challenging. To deal with these uncertainties, dynamic adaptive policies that can be changed over time are suggested. This paper presents a model-driven approach supporting the development of promising adaptation pathways, and illustrates the approach using...
journal article 2014
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Haasnoot, M. (author), Kwakkel, J.H. (author), Walker, W.E. (author), Ter Maat, J. (author)
A new paradigm for planning under conditions of deep uncertainty has emerged in the literature. According to this paradigm, a planner should create a strategic vision of the future, commit to short-term actions, and establish a framework to guide future actions. A plan that embodies these ideas allows for its dynamic adaptation over time to meet...
journal article 2013
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Walker, W.E. (author), Haasnoot, M. (author), Kwakkel, J.H. (author)
There is increasing interest in long-term plans that can adapt to changing situations under conditions of deep uncertainty. We argue that a sustainable plan should not only achieve economic, environmental, and social objectives, but should be robust and able to be adapted over time to (unforeseen) future conditions. Large numbers of papers...
journal article 2013
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Haasnoot, M. (author), Kwakkel, J.H. (author), Walker, W.E. (author)
Water management in river deltas is increasingly being challenged by pressures from population growth, sea level rise, increasing variability in river runoffs, and potential climate change. Adaptation to such changes is not only determined by what is known or anticipated at present, but also by what will be experienced and learned as the future...
conference paper 2012
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Taneja, P. (author), Ligteringen, H. (author), Walker, W.E. (author)
Recently, flexibility has received much attention from port researchers, designers, and managers. This is because the stability of the competitive environment of the past has been replaced by increasing uncertainty. The current economic crisis and the recent trends in ports and shipping sectors are causing port planners to rethink their approach...
journal article 2012
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Walker, W.E. (author), Giddings, J. (author), Armstrong, S. (author)
Recent advances in computers, networking, and telecommunications offer new opportunities for using simulation and gaming as methodological tools for improving crisis management. It has become easy to develop virtual environments to support games, to have players at distributed workstations interacting with each other, to have automated...
journal article 2011
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Kwakkel, J.H. (author), Walker, W.E. (author), Marchau, V.A.W.J. (author)
Airport Strategic Planning (ASP) focuses on the development of plans for the long-term development of an airport. The dominant approach for ASP is Airport Master Planning (AMP). The goal of AMP is to provide a detailed blueprint for how the airport should look in the future, and how it can get there. Since a Master Plan is a static detailed...
journal article 2010
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Taneja, P. (p.taneja@tudelft.nl) (author), Ligteringen, H. (h.ligteringen@tudelft.nl) (author), Walker, W.E. (w.e.walker@tudelft.nl) (author)
Recently, flexibility has received much attention from port researchers, designers, and managers. That is because the stability of the competitive environment of the past has been replaced by increasing uncertainty. The current economic crisis and the recent trends in ports and shipping sectors are causing port planners to rethink their approach...
conference paper 2010
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Walker, W.E. (author), Baarse, G. (author), Van Velzen, A. (author), Järvi, T. (author)
Work conducted within REORIENT, a Sixth Framework project for the European Commission (EC), is described. One objective of REORIENT was to explain the status of transformation of the European railway sector into a functionally integrated, liberalized, interoperable system. The status of interoperability within and between eleven countries in a...
journal article 2010
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Taneja, P. (author), Walker, W.E. (author), Ligteringen, H. (author), Van Schuylenburg, M. (author), Van der Plas, R. (author)
The evolving function of a port, and the many logistical, technological and economic uncertainties under which it must operate, make the planning and design of these complex socio-technical infrastructures very challenging. A Master Plan of a port is the instrument by which the port’s (expansion) strategy in the market place is defined....
conference paper 2009
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Walker, W.E. (author), Harremoës, P. (author), Rotmans, J. (author), Van der Sluijs, J.P. (author), Van Asselt, M.B.A. (author), Janssen, P. (author), Krayer von Krauss, M.P. (author)
The aim of this paper is to provide a conceptual basis for the systematic treatment of uncertainty in model-based decision support activities such as policy analysis, integrated assessment and risk assessment. It focuses on the uncertainty perceived from the point of view of those providing information to support policy decisions (i.e., the...
journal article 2003
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Walker, W.E. (author)
public lecture 2000
Searched for: author:"Walker, W.E."
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