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Zorluk: OrtaHours of Service (HOS) Regulations

Under the Federal Motor Carrier Safety Regulations (FMCSR) 70-hour/8-day rule for property-carrying carriers operating vehicles every day of the week, a commercial driver has accumulated the following on-duty hours over the past 77 consecutive days:

- Day 1: 9.5 hours9.5\text{ hours}
- Day 2: 8.0 hours8.0\text{ hours}
- Day 3: 10.0 hours10.0\text{ hours}
- Day 4: 9.0 hours9.0\text{ hours}
- Day 5: 8.5 hours8.5\text{ hours}
- Day 6: 9.0 hours9.0\text{ hours}
- Day 7: 7.5 hours7.5\text{ hours}

Assuming the driver has not taken a 3434-hour restart, how many total on-duty hours does the driver have available on Day 8 before reaching the 7070-hour maximum limit?

Cevap: 8.5 hours

Cevap

8.5 hours
Under the Federal Motor Carrier Safety Regulations (FMCSR) Part 395, property-carrying carriers operating every day of the week are subject to the 70-hour/8-day rule. The driver accumulated a total of 61.5 hours61.5\text{ hours} on duty from Day 1 through Day 7 (9.5+8.0+10.0+9.0+8.5+9.0+7.5=61.59.5 + 8.0 + 10.0 + 9.0 + 8.5 + 9.0 + 7.5 = 61.5). Subtracting 61.5 hours61.5\text{ hours} from the 70.0 hours70.0\text{ hours} ceiling leaves exactly 8.5 hours8.5\text{ hours} of available on-duty time before reaching the maximum limit on Day 8.

Adım Adım Çözüm

1
Sum the total on-duty hours accumulated over the previous 7 consecutive days.
Total accumulated time is 61.5 hours61.5\text{ hours} (9.5+8.0+10.0+9.0+8.5+9.0+7.5=61.59.5 + 8.0 + 10.0 + 9.0 + 8.5 + 9.0 + 7.5 = 61.5).
Under the 70-hour/8-day rule, all on-duty time across the consecutive 8-day rolling window counts toward the cumulative limit.
2
Subtract the accumulated 7-day total from the 70-hour maximum allowable limit.
Available on-duty hours on Day 8 is 8.5 hours8.5\text{ hours} (70.0−61.5=8.570.0 - 61.5 = 8.5).
A driver may not drive after accumulating 70 on-duty hours in any 8 consecutive days until hours drop off or a qualifying 34-hour restart is completed.

Anahtar Kavram

Calculation of available on-duty hours under the FMCSR 70-hour/8-day cumulative limit
Tahmini Süre:1m 0s
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Konular

Hours of Service (HOS) Regulations

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