Keywords
Brownfields Redevelopment, Optimization Techniques, Mathematical Programming, Environmental Planning, Land Use.
Start Date
25-6-2018 9:00 AM
End Date
25-6-2018 10:20 AM
Abstract
The redevelopment of brownfields is an issue of increasing concern for urban and water managers. Brownfields, which once supported economic activities, are now abandoned or underutilized sites, frequently becoming a source of nuisance for nearby communities and pollution of water resources. Nonetheless, their redevelopment offers valuable opportunities, especially if multiple or large areas are available. In this paper, we present a preliminary economic model based on mathematical programming, inspired by similar models applied to IWRM. It is designed to maximize the benefits of redeveloping a portfolio of brownfields. This approach incorporates: (1) the benefits of brownfields redevelopment (financial, social and environmental) for a set of redevelopment alternatives; (2) sites characteristics and cleanup procedures if needed; and (3) regulatory requirements and regional policy orientations. The outcome of the model assigns the optimal redevelopment project to each brownfield parcel, and displays the aggregated social benefit, allowing accounting for potential synergies between different sites redevelopment. To illustrate this, we run the model to optimize the redevelopment of a simplified case study inspired on an industrial zone in Lyon, France. We therefore describe how the tool can contribute in analyzing tradeoffs of policy-making scenarios. Hence, we attempt to address gaps on literature with two contributions: (1) the model proposes an enhanced alternative to incorporate the criteria of sustainable assessments in a cost-effectiveness analysis; and (2) the approach allows combining the choice of the most appropriate redevelopment at the site scale and the prioritization of redevelopments for a portfolio of brownfields at a regional scale.
Developing an economic model for the redevelopment of a portfolio of brownfields
The redevelopment of brownfields is an issue of increasing concern for urban and water managers. Brownfields, which once supported economic activities, are now abandoned or underutilized sites, frequently becoming a source of nuisance for nearby communities and pollution of water resources. Nonetheless, their redevelopment offers valuable opportunities, especially if multiple or large areas are available. In this paper, we present a preliminary economic model based on mathematical programming, inspired by similar models applied to IWRM. It is designed to maximize the benefits of redeveloping a portfolio of brownfields. This approach incorporates: (1) the benefits of brownfields redevelopment (financial, social and environmental) for a set of redevelopment alternatives; (2) sites characteristics and cleanup procedures if needed; and (3) regulatory requirements and regional policy orientations. The outcome of the model assigns the optimal redevelopment project to each brownfield parcel, and displays the aggregated social benefit, allowing accounting for potential synergies between different sites redevelopment. To illustrate this, we run the model to optimize the redevelopment of a simplified case study inspired on an industrial zone in Lyon, France. We therefore describe how the tool can contribute in analyzing tradeoffs of policy-making scenarios. Hence, we attempt to address gaps on literature with two contributions: (1) the model proposes an enhanced alternative to incorporate the criteria of sustainable assessments in a cost-effectiveness analysis; and (2) the approach allows combining the choice of the most appropriate redevelopment at the site scale and the prioritization of redevelopments for a portfolio of brownfields at a regional scale.
Stream and Session
C2: Application of Decision Support Tools for Integrated Water Resources Management