The Community Resilience Economic Decision Guide for Buildings and Infrastructure Systems (EDG) provides a standard economic methodology for evaluating investment decisions aimed at improving the ability of communities to adapt to, withstand, and quickly recover from disruptive events. The EDG is designed for use in conjunction with the companion Community Resilience Planning Guide for Buildings and Infrastructure Systems.
The EDG frames the economic decision process by identifying and comparing the present and future streams of costs and benefits of resilience investments to the status-quo. Benefits are realized through cost savings and damage loss avoidance. Other topics include non-market values, uncertainty, co-benefits related to resilience investments, and positive and negative externalities—costs or benefits that impact a third party for a given strategy.
NIST has also produced the EDGe$ Tool, a powerful, software-based technique for selecting cost-effective, infrastructure-based community resilience projects based on the process found in the Community Resilience Economic Decision Guide for Buildings and Infrastructure Systems.