RWIC

A hi-rail vehicle is a rubber-tired truck or SUV equipped with retractable steel rail wheels that allow it to operate on both road and railroad track.

Maintenance-of-Way refers to the department, workforce, and activities responsible for inspecting, repairing, and maintaining railroad track and infrastructure.

A roadmaster is the field supervisor responsible for the maintenance, inspection, and regulatory compliance of track and infrastructure within an assigned territory.

A Roadway Worker In Charge is the qualified individual responsible for establishing and maintaining on-track protection for a group of workers fouling the track or right-of-way.

A track inspector is an FRA-qualified railroad employee responsible for visually inspecting assigned track territory on a defined cycle to identify defects and ensure compliance with FRA Track Safety Standards.