Junction Interchange File
The Junction Interchange File (JUNC) is the basis for identification of inter-carrier activities. This file contains records for each junction abbreviation and pairs of reporting marks that interchange at that junction. It also describes physical locations and defines the types of activities which occur at that location including:
- Boundary crossings
- Per diem relief points
- Rail to rubber interchange
- Shop interchange
- Water interchange
- Traditional rail to rail interchange.
Information systems that depend and validate using the Junction Interchange Reference File are: REN/PRDB (Rate EDI Network/Price Database), Interline Settlement System (ISS) and the Route Industry Reference File (ROUTE).