Benefit-Cost Analyses Guidebook for Airport Stormwater (2019)
Cadmus authored a comprehensive benefit-cost analyses (BCA) guidebook that provides airports much-needed guidance when undertaking stormwater projects to accommodate facility expansion, address obsolescence, and comply with evolving regulatory requirements. When airports consider expanding or improving their stormwater facilities, the immediate need for stormwater infrastructure modification may not be clear, necessitating a BCA. But guidance has been limited and research was needed to address this gap.
Key features of the guidebook include:
An overview of the steps for conducting a BCA and common drivers for airport stormwater projects.
Guidance for setting up a BCA, including framing the analysis and identifying data needs.
Recommendations for incorporating a triple bottom line approach.
Hypothetical example of Bayside Airport used to illustrate concepts and guidance throughout the guidebook.
Numerous checklists, flowcharts, and decision trees.
Suggestions on how to use the BCA results, including how to make a case for the recommended alternative with stakeholders.
Cadmus prepared this report through extensive literature reviews and interviews with stakeholders associated with stormwater projects at airports of various sizes and in differing climates and regions. In addition, the Cadmus team performed tabletop exercises for two airport cases of how a BCA could be employed. The guidebook was published with the Airport Cooperative Research Program, the Transportation Research Board, and the National Academies of Sciences, Engineering, and Medicine.