This is the public portion of METAL, the Map-based Educational Tools for Algorithm Learning project. Typical users would use the installed versions of these tools at https://courses.teresco.org/metal/ . These educational tools use TravelMapping (https://travelmapping.net) data to create graphs of highway systems.
Instructor support (assignments, C and Java code) are in a private repository and are available on request to instructors interested in using METAL in courses or projects.