It is meant to highlight HOS logs generated by vehicles without assigned drivers. It will display the time the trip started as well as the distance and duration of that trip. It is best to run this report for 1 day to ensure your fleet meets HOS regulations.
This is a custom report based on a custom exception rule for trips without any assigned driver. Please make sure that this rule is setup for the correct group for vehicles with ELDs. Otherwise, non-ELD vehicles may appear on the report.