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As haulout distances will be relatively long, payloads will need to be large. Tipping from bin to bin is
not preferred, so haulouts with half a road trailer capacity of around 35 m 3 are unlikely, and a single
trailer with a capacity of around 70m 3 will most likely be investigated. This size should give a payload
of around 28 t at a bulk density of 0.4 t/m 3 .
A combined tare weight for a tractor and large trailer plus a bin, as depicted in Figure 3.6 might be
about 30 tonnes, which would give a load/gross mass ratio of about 0.45.
3.2.3 Haulage cost and fuel consumption
Sugar System
Haulage costs have been examined in relation to transport speed and distance, as described in Figures
3.8 and 3.9. The influence of payload will be similar to that observed for speed as these are the two
principal influences upon transport costs.
Figure 3.8 Effect of haulout speed on infield transport cost
Figure 3.9 Effect of haul distance on infield transport cost
Haulout fuel usage is directly related to the average distance that the biomass must be hauled from the
harvester to the receival and hence is dependent on machine size, distance, payload and farm and
operational factors. Clearly, factors such as engine size, row length, distance to siding and a range of
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