Estimated Travel Time (ETA) Calculation for Bucharest–Paris Using a Tachograph for 3.5-metric-ton Vehicles

The ETA for the Bucharest–Paris route must be calculated based on distance, average planned speed, legal driving times, mandatory breaks, and rest periods. For a distance of approximately 2,300 km and an average speed of 75 km/h, about 30 hours and 40 minutes of actual driving time are required.

In short, the ETA calculation for the Bucharest–Paris flight includes:

Adding the time required for loading, unloading, border clearance, refueling, and other operational delays.
Dividing driving time into 9–10-hour days.
A maximum of two 10-hour days per week.
A 45-minute break after every 4 hours and 30 minutes of driving.
A normal daily rest period of 11 hours, or a reduced rest period of 9 hours, if permitted.
Estimated duration of approximately 67–69 hours with normal rest.
Estimated duration of approximately 61–62 hours with minimal rest.
The legal impossibility of completing the race within 48 hours with a single driver.

This chapter explains the practical method a dispatcher can use to quickly calculate the duration of a Bucharest–Paris trip after 3.5-metric-ton vehicles are subject to tachograph regulations. The example is presented both as a quick method and as a complete end-to-end simulation.

Operational assumptions used

To perform a standard calculation, the following assumptions are used:

• Approximate driving distance: 2,300 km (depending on the route);
• Average planned speed: 75 km/h (without breaks or rest stops).

In practice, dispatchers work with an average planned speed and add an operational buffer.

1. Quick calculation method for dispatchers (≈ 60 seconds)

Step A – Calculating Actual Driving Hours

Hours driven ≈ Distance / average speed
2,300 km / 75 km/h = 30.67 hours (approx. 30 h 40 min of actual driving time).

Step B – Converting to Driving Days

Applicable rules:
• maximum 9 hours of driving per day;
• maximum 10 hours per day, twice a week.

Efficient one-week plan:
Day 1: 10 hours
Day 2: 10 hours
Day 3: 9 hours
Total: 29 hours → leaving ~1 hour 40 minutes for Day 4.

Step C – Mandatory Breaks

After a maximum of 4 hours and 30 minutes of driving, a 45-minute break is required.

• For 10 hours of driving per day: usually 2 breaks (1 hour and 30 minutes);
• For 9 hours of driving per day: 1 break (45 minutes).

Step D – Daily Rest

• Normal daily rest period: 11 hours;
• Reduced daily rest period: 9 hours (maximum of 3 times between two weekly rest periods).

2. Race simulation with a NORMAL daily rest period (11 hours)

Theoretical minimum duration (excluding loading, ramp, and border crossing): approximately 68 hours.
This is about 2 days and 20 hours.

Day 1:
• 10 hours of driving;
• 1 hour 30 minutes of breaks;
• 11 hours of rest → total 22 hours 30 minutes.

Day 2:
• 10 hours of driving;
• 1 hour 30 minutes of breaks;
• 11 h rest → total 22 h 30 min.

Cumulative total after Day 2: 45 h.

Day 3:
• 9 h driving;
• 45 min break;
• 11 h rest → total 20 h 45 min.

Cumulative total reminder: 29 h driving.

Day 4:
• ~1 hr 40 min driving.

Resulting total duration: approximately 67–69 hr.

3. Simulation with REDUCED daily rest (9 hours)

By reducing the daily rest period (11 → 9 h), approximately 2 h are saved per day.

Result:
• total duration: approximately 61–62 h;
• equivalent to 2 days and 13–14 hours.

4. Why a 48-hour shift is no longer legal with a single driver

Completing the race in ~48 hours would require:
• exceeding driving time limits;
• failing to observe rest periods;
• or having a crew (2 drivers) / relay.

Under legal regulations with a single driver, this timeframe is not possible.

5. Daily ETA Calculation Template for Dispatchers

Tdrive = Distance / average speed
Breakdown by day: 10 h (maximum 2 days) + 9 h
Breaks: 45 min for every 4 h 30 min of driving
Rest: 11 h (or 9 h if permitted)

Finally, add operational times: loading, unloading, ramp, border crossing, refueling.
The result is a realistic ETA.

Frequently Asked Questions

How is the actual driving time for the Bucharest–Paris route calculated?

Driving time is calculated by dividing the total distance by the planned average speed. For approximately 2,300 km and an average speed of 75 km/h, this results in approximately 30 hours and 40 minutes of actual driving time.

How many days does it take to legally drive from Bucharest to Paris with a single driver?

Under normal circumstances, the route should be divided into approximately four days of driving: two 10-hour days, one 9-hour day, and about 1 hour and 40 minutes on the fourth day.

What is the estimated duration of the race, assuming a normal daily rest period?

Assuming a normal daily rest period of 11 hours, the theoretical minimum duration is approximately 67–69 hours, not including loading, unloading, border crossing, or other operational delays.

By how much is the trip duration reduced if the shortened daily rest period is used?

By reducing the daily rest period from 11 to 9 hours, approximately two hours can be saved each day. In this case, the estimated total duration could reach approximately 61–62 hours.

Why can't the Bucharest–Paris route be legally operated in 48 hours?

A 48-hour period would involve exceeding the legal driving times or failing to observe breaks and rest periods. This duration is only possible with two drivers, a relay system, or other special operating conditions.

How many breaks are needed during a day of driving?

After every period of up to 4 hours and 30 minutes of driving, a 45-minute break is required. For a 10-hour driving day, two breaks are generally required, and for a 9-hour driving day, at least one break is required.

What additional time should be added when calculating the ETA?

In addition to the legal driving time, breaks, and rest periods, you must also factor in time for loading, unloading, refueling, border formalities, waiting at the loading dock, traffic, and any detours. Only after taking these factors into account can you arrive at a realistic ETA.

György Bokor

Founder and CEO of Paneuropa Logistics

I am György Bokor, Founder and CEO of Paneuropa Logistics. I have been active in the logistics industry for more than 20 years, focusing on international transportation, freight forwarding, last-mile deliveries and customs services. I am passionate about developing efficient solutions that connect businesses across Europe.

Calculation of the estimated travel time (ETA) for the Bucharest–Paris route under the tachograph regime (Reg. 561/2006)