Driver-card .DDD files
Review driving, other work, availability, breaks and rest across day, week, timeline and calendar views. Supported by Driver and Business.
A .DDD file is an original download from a digital tachograph driver card or a vehicle’s tachograph unit. Specialist software is needed to translate the signed records into something a driver or operator can review.
TachoAssist keeps the source file connected to its analysis. It is more than a raw tachograph file reader: you can follow activity, investigate automated findings and create evidence for a chosen period.
The file source determines which records are available and which plan is required.
Review driving, other work, availability, breaks and rest across day, week, timeline and calendar views. Supported by Driver and Business.
Review vehicle identity, detected drivers, events, faults, downloads, odometer records and recorded locations. Supported by Business.
Keep uploads tied to their source, review file history and manage retention, deletion or archiving from the same workspace.
Important: automated findings support compliance work and must be reviewed. They are not legal advice or a definitive statement of compliance.

Questions
TachoAssist opens driver-card and Vehicle Unit .DDD files in a modern web browser and presents their tachograph records as readable analysis rather than raw file data.
No. A driver-card file centres on one driver’s activities and card records. A Vehicle Unit file contains vehicle tachograph records such as identified drivers, events, faults and recorded positions.
Yes. TachoAssist can use uploaded tachograph records to generate reports for selected date ranges. Business reporting supports PDF and Excel outputs.