Piedmont Air Line A nickname or marketing name used in the 1870s and 1880s by the Richmond & Danville Railroad and several other railroads under its control. In Georgia, these were the Atlanta & Richmond Air Line Railway and its successor, the Atlanta & Charlotte Air Line Railway.   Georgia's Railroad History & Heritage. Copyright, Steve Storey. Railroad History | The Depot List | Locomotives On Display | Odds & Ends | Sources & References | Home