Trip Assignment Calculator

Assign trips using capacity, cycle time, and crews. Optimize fleet size for smoother daily production. Export results to share with planners and supervisors easily.

Trip assignment inputs

Used in exports and reports.
Outputs follow the same system.
Select how the total quantity is defined.
In-situ volume before swell or shrink.
Loose = bank × swell (e.g., 1.25).
Rated loose volume of the body.
Delivered mass for the full work scope.
Rated payload, not gross vehicle weight.
Accounts for underfill and heaping limits.
Total trucks assigned to the haul route.
Use 2 for double-shift operations.
Scheduled shift duration, excluding overtime.
Lunch, safety briefings, and mandatory breaks.
Accounts for minor delays and variability.
From loading point to dump point.
Average speed while hauling loaded.
Average speed on the return leg.
Spotting + loading + ticketing, per trip.
Dump + spread + exit, per trip.
Average waiting time at loader or tip.
Traffic, cleaning, weighbridge, or checks.
Include driver, maintenance, and overhead.
Used for fuel cost estimation only.
Average consumption on loaded travel leg.
Average consumption on empty return leg.
Engine idling during loading, queueing, dumping.
Editable to match your reporting method.
Reset
Tip: If results look optimistic, lower efficiency or add queue time.

Example data table

Scenario Quantity basis Total quantity Truck capacity / payload Distance one-way Fleet Cycle time (min) Trips required Trips/day Days
Borrow to embankment Volume 500 m³ bank, swell 1.25 12 m³, fill 0.90 5 km 4 trucks, 1×8h, 85% ~25.0 58 ~65.3 ~0.89
Aggregate deliveries Mass 900 t 18 t, fill 0.95 12 km 6 trucks, 1×10h, 80% ~46.0 53 ~62.6 ~0.85

Example numbers are illustrative; your site conditions will differ.

Formula used

Trips required

  • Volume basis: Loose volume = Bank volume × Swell factor
  • Effective payload = Truck capacity × Fill factor
  • Trips required = ceil(Loose volume ÷ Effective payload)
  • Mass basis: Effective payload = Payload rating × Fill factor
  • Trips required = ceil(Total mass ÷ Effective payload)

Cycle time and production

  • Loaded travel (min) = (Distance ÷ Loaded speed) × 60
  • Empty travel (min) = (Distance ÷ Empty speed) × 60
  • Cycle time (min) = Loaded + Empty + Load + Dump + Queue + Other
  • Productive minutes/shift = (Shift minutes − Breaks) × Efficiency
  • Trips/truck/shift = Productive minutes ÷ Cycle time
  • Trips/day (fleet) = Trips/truck/shift × Trucks × Shifts/day
  • Days required = Trips required ÷ Trips/day (fleet)

Fuel and cost model

  • Fuel/trip = Loaded leg + Empty leg + Idle fuel during fixed time
  • Loaded/Empty fuel legs are computed from distance and consumption rate.
  • Fleet hours = Trips required × (Cycle time ÷ 60)
  • Total cost = (Total fuel × Fuel price) + (Fleet hours × Hourly cost)
  • CO₂ estimate = Total fuel × CO₂ factor

How to use this calculator

  1. Choose units and whether you plan by volume or mass.
  2. Enter total quantity and truck capacity or payload with a realistic fill factor.
  3. Set fleet size, shift plan, breaks, and a conservative efficiency value.
  4. Define the route distance, travel speeds, and all fixed time components.
  5. Click Calculate and review trips/day and duration.
  6. Use CSV/PDF buttons to share the result with your team.
Built for quick planning and scenario comparisons on site.

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Important Note: All the Calculators listed in this site are for educational purpose only and we do not guarentee the accuracy of results. Please do consult with other sources as well.