ABSTRACT
In a recent (2019) Federal Aviation Administration funded project, guidelines and a framework for conducting life cycle assessment (LCA) studies for airfields was developed. Four comprehensive example case studies were prepared, with data from recently completed projects and participation from four U.S. airports and/or their consultants, and were presented in the report. The scope of the study was limited to airside civil infrastructure. The framework provides a starting point for the development of an LCA tool for airfields, which can be adapted from roadway pavement LCA tools. This paper reviews the data, models and interface changes needed to create an airfield LCA tool. Different data/unit processes and a different graphical user interface (GUI) will be needed, however, no changes are required for the LCA engine. An understanding of the performance models for the use stage for different types of airfield features that include runways, taxiways, aprons, gate pavements, access roadways, the landscaping and fencing, lighting, drainage, de-icing handling, will also be studied. Some of the steps that would be required to develop an airfield LCA tool are:
Finalize the scope of features and operations to be considered in the tool
Define the events in the airfield life cycle for each feature and operation
Define the materials and equipment and transports in relation to airfields
Locate and localize life cycle inventory data
Build unit processes and models (special attention to materials that are specific to airfields, and the use stage models)
Working with practicing airfield engineers, prototype the GUI, reports, graphics, etc.
Implement, test, document
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