Work out haul truck cycle time instantly with clear inputs, formula shown and shareable results.
Haul cycle time is loaded travel plus empty return plus fixed time for spotting, loading, dumping and queueing. Trips per hour follows directly, and multiplying by payload gives fleet productivity. Fixed time dominates on short hauls, while road grade and rolling resistance dominate on long ones.
Cycle time
Cycle = distance x 60 / loaded speed + distance x 60 / empty speed + fixed time
Productivity
Trips per hour = 60 / cycle time
Road maintenance and grade. Rolling resistance on a poorly maintained haul road can halve loaded speed, and every percent of adverse grade costs several kilometres per hour.
Match factor: trucks required = cycle time / loader loading time. Under-trucking idles the loader; over-trucking creates queues that inflate fixed time.