Research Article

Road Transport Vehicles for Hauling Uncomminuted Forest Energy Products in Sweden

Table 3

Mean time consumption in minutes per load and tonne (standard deviations in parentheses).

ActivityForest energy product Loose residuesTree sectionsStumpsBundles
Transportation modeSpecialized vehicle 1Specialized vehicle 1Specialized vehicle 2Container system vehicleSpecialized vehicle 1Specialized vehicle for bundles

Loading, min/load 41.50 (15.19)35.20 (7.56)51.78 (2.99)104.39 (15.51)32.78 (26.93)79.58 (10.44)
Unloading, min/load 33.98 (7.34)30.12 (5.93)42.69 (5.38)59.83 (4.49)27.96 (4.47)61.74 (7.11)
Aggregate, min/load 75.48 (19.24)65.32 (9.52)94.47 (5.90)164.22 (18.91)60.73 (28.68)141.32 (14.29)

Loading, min/tonne2.51 (0.86)1.54 (0.51)2.74 (0.21)6.05 (1.65)1.19 (0.94)2.35 (0.27)
Unloading, min/tonne2.24 (0.99)1.45 (1.06)2.25 (0.21)3.47 (0.84)1.02 (0.18)1.84 (0.30)
Aggregate, min/tonne4.75 (1.63)2.99 (1.51)5.00 (0.24)9.52 (2.43)2.21 (1.01)4.19 (0.94)

Number of observations 21167121710