AAM Glossary
What Is a Digital Twin in Infrastructure Planning?
A digital twin is a virtual replica of something physical — a facility, a corridor, an entire transportation network — built from geospatial data and engineering models and kept in sync with the real world it mirrors. In infrastructure planning, the twin becomes the environment where decisions are tested: planners simulate designs, traffic, energy loads, and failure scenarios digitally, long before ground is broken.
How does a digital twin work in practice?
A twin begins with a geospatial foundation: terrain, buildings, obstacles, land-use and zoning layers, utility networks, and transportation links assembled into a georeferenced model. Engineering and operational data are layered on top — structural designs, power capacity, traffic volumes, weather patterns. The model becomes a twin, rather than a static map, when it stays connected to changing data and is used to run scenarios — flood exposure, demand growth, obstacle conflicts along an approach path — whose results feed real decisions.
Why are digital twins used for site selection and network design?
Infrastructure mistakes are expensive precisely because they are physical. A twin lets planners make those mistakes virtually instead. Candidate sites can be scored against airspace access, obstacle clearance, power availability, ground transportation connections, environmental constraints, and projected demand before any land is acquired. At network scale, the twin shows how individual facilities interact — where corridors should run, which sites serve overlapping demand, and how the system behaves when one node goes offline.
For Advanced Air Mobility this matters acutely, because the infrastructure is being planned ahead of the market it will serve. Digital twins let agencies and investors evaluate vertiport locations and corridor designs against forecast demand rather than waiting for operational history that does not yet exist.
Frequently asked questions
How is a digital twin different from a map or CAD model?
A CAD model shows geometry and a GIS map shows layers of georeferenced data. A digital twin combines both and stays connected to changing information, so it can simulate behavior over time — traffic, energy, weather, demand — rather than simply depict a site.
What data goes into an infrastructure digital twin?
Typically terrain and obstacle surveys, land-use and zoning layers, utility and power networks, transportation and traffic data, weather and climate records, and demographic or demand forecasts. The richer and fresher the data, the more decisions the twin can credibly support.
When in a project should a digital twin be built?
As early as possible. The highest-value use is upstream — screening candidate sites, comparing network designs, and testing assumptions before capital is committed. The same twin then carries forward into construction sequencing and, later, live operations monitoring.
Related terms
A vertiport is a ground facility purpose-built for aircraft that take off and land vertically, combining landing pads with charging or fueling systems, passenger and cargo handling, and the sensing equipment that safe eVTOL operations require.
Air corridorAn air corridor is a defined volume of airspace reserved or structured for aircraft traveling between fixed points, giving Advanced Air Mobility operations predictable routes with known procedures, surveillance coverage, and traffic rules.
MicrogridA microgrid is a self-contained energy network — local generation, storage, and intelligent controls serving a defined site — that can operate connected to the utility grid or disconnect and run independently.