Benefits of SuDS Tool (BeST)
The Benefits of SuDS Tool (BeST) has been developed by Ciria and was released to the public in July 2015. It is freely available and can be downloaded from the Susdrain website, along with user guidance and other supporting documents. It is a Microsoft Excel-based tool that has been developed to make assessing the benefits of Sustainable Drainage Systems (SuDS) easier, without the need for full scale economic inputs.
BeST provides a structured approach to evaluating a wide range of benefits associated with SuDS, which is often based on the overall drainage system performance. The user-friendly design takes you through a series of steps (sections divided by tabs), which allow you to methodically enter qualitative and quantitative data about the wide range of benefits that are relevant to the project. It begins with a screening and qualitative assessment to identify the benefits to evaluate further. Then it provides support to help quantify and monetise each benefit. There is flexibility for users to add their own criteria, additional to those listed in the options presented in the tool. Once you have completed the evaluation, the tool provides a series of graphs and charts to present the benefits, based on Ecosystem Services (ESS) and Triple Bottom Line (TBL) criteria.