In the quest for sustainable urban development, Nature-Based Solutions (NBS) have emerged as a promising strategy for mitigating and adapting to climate change. Yet, despite their potential, the adoption of these solutions has been hindered by a lack of tools to accurately estimate their costs. A recent study published in ‘Valori e Valutazioni’ (which translates to ‘Values and Evaluations’) by Giulia Datola of the Dipartimento di Architettura e Studi Urbani (DAStU) at Politecnico di Milano aims to change that. The research proposes a novel approach using the Work Breakdown Structure (WBS) to provide a detailed and flexible framework for cost estimation and management of NBS throughout their entire life cycle.
Datola’s study focuses on Sustainable Urban Drainage Systems (SUDS), a type of NBS designed to manage urban water in an environmentally sensitive manner. The research demonstrates that the WBS method can effectively break down the complex components of NBS into manageable and cost-evaluable parts. “The modular and flexible structure of the WBS allows it to be adapted to different project contexts,” Datola explains. This adaptability is crucial for the energy sector, where diverse and innovative solutions are often required to address specific environmental challenges.
The significance of this research lies in its potential to streamline the implementation of NBS in urban planning and infrastructure projects. By providing a clear and detailed cost breakdown, the WBS method can help stakeholders make informed decisions, ensuring that NBS are not only environmentally sustainable but also economically viable. “Estimating costs across the entire life-cycle of NBS is essential for their sustainable implementation and management,” Datola emphasizes. This comprehensive approach can contribute to the wider adoption of NBS, integrating them more effectively into urban climate adaptation strategies.
For the energy sector, the implications are substantial. As cities strive to become more resilient and sustainable, the demand for innovative solutions that can manage water resources efficiently and reduce the impact of urbanization on the environment will only grow. The WBS method offers a practical tool to evaluate the economic feasibility of these solutions, potentially accelerating their deployment and enhancing their impact.
Moreover, the flexibility of the WBS method means it can be applied to a wide range of NBS, from green roofs and rain gardens to permeable pavements and constructed wetlands. This versatility makes it a valuable asset for urban planners, engineers, and policymakers seeking to integrate NBS into their projects. By providing a clear and detailed cost evaluation, the WBS method can help ensure that these solutions are not only environmentally beneficial but also financially sound.
As the energy sector continues to evolve, the need for sustainable and resilient infrastructure will become increasingly important. Datola’s research offers a promising step forward in this direction, providing a tool that can help unlock the full potential of NBS. By enabling more accurate cost estimation and management, the WBS method can support the transition towards more sustainable and resilient cities, ultimately contributing to a healthier and more sustainable future for all.