The geographic locations were determined using the Airport Reference Points for each airport as reported on their respective Master Records. These records were accessed using a database from the Federal Aviation Administration (FAA).

The DelDOT Centerline file is a digital, spatial representation of the State of Delaware's statewide transportation network.

All State of Delaware Bike Routes assembled in one layer.

Bike Routes that run the length of the State of Delaware.

Bike Routes that connect to the Regional and Statewide Bike Routes.

The functional classification of Delaware roadways

Bike routes that run mainly East/West across the state.
These routes run along major roads.