Network Structures and Project Complexity in Environmental Impact Assessment Outcomes
Publication: Construction Research Congress 2024
ABSTRACT
Public-private partnerships (PPPs) have been implemented as a suitable delivery method for infrastructure projects. Because of their size, those projects imply disrupting significantly the natural environment when creating complex built environments that fulfill human needs. In this context, PPPs require instruments to evaluate and mitigate environmental impacts through the infrastructure life cycle such as the environmental impact assessment (EIA). In PPPs, the EIA is carried by concessionaires composed of equity providers (EPs), which are embedded in network structures. Despite the relevance of EPs and project complexity for the outcomes of the EIA, previous research in this field has mainly focused on understanding EIA processes rather than its outcomes and drivers for effectiveness. To overcome this limitation, this paper analyzes the influence of temporal network metrics (e.g., temporal degree centrality, temporal closeness centrality, and temporal betweenness centrality), defined by EP relationships, and project complexity in delivering effective EIA. This research gathers information on 28 road PPPs in Colombia between 2014 and 2023. Findings show that actors’ positioning computed through temporal metrics, especially temporal closeness centrality, influences the capacity of actors to carry EIA effectively.
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Construction Research Congress 2024
Pages: 127 - 137
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Published online: Mar 18, 2024
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