The General Transit Feed Specification (GTFS) defines an open standard format for exchanging public transportation schedule, geographic and fare information. GTFS “feeds” let public transit agencies p
Shapefile of railways in North America between 1960 and 1980 based on historical cartography of different libraries. Shapefiles each 20 years because of the impossibility of finding historical cartogr
This layer displays all of the currently adopted Iowa Highway segments as related to the Adopt-A-Highway program. These layers were developed for utilization by the Electronic Permitting System (EPS)