https://orcid.org/0000-0002-7353-1019
Figures & data
Figure 1. Location of Mie prefecture in central Japan.
Figure 2. The truck and truck/trailer combinations typically used in Japan (photographs by Y Chinone). A truck (ISUZU) with a maximum load capacity of 3.5 t (A), a truck (Mitsubishi Fuso) with a maximum load capacity of 6 t with a grapple loader (B), a truck (ISUZU) with a maximum load capacity of 10 t (C), and a truck/trailer combination (HINO) with a maximum load capacity of 20 t (D).
Figure 3. Age of the surveyed log truck drivers.
Figure 4. Years of truck driving experience (a) and years of log truck driving experience (b).
Figure 5. Days worked annually.
Figure 6. Maximum load capacity of the log trucks driven in daily work.
Figure 7. Main job with which drivers were engaged at their company. Multiple answers are included in other.
Figure 8. Log loading and unloading work undertaken by drivers.
Figure 9. Mean (a) and maximum (b) driving distance per day.
Figure 10. Mean (a) and maximum (b) driving time per day.
Figure 11. Number of days with night shifts after 10 pm per month (a) and number of days spent on sleepover business trips per month (b).
Figure 12. Rest days per month.
Figure 13. Fatigue due to driving larger trucks.
Figure 14. Degree of difficulty of log transportation compared to other cargo.
Figure 15. Roads on which drivers felt nervous transporting logs.
Figure 16. Experienced feeling ill at ease while driving.
Figure 17. Frequency of driving while drowsy.
Figure 18. Appropriate time for rests or naps during their shifts when they were not driving.
Figure 19. Experienced troubled parking to wait or rest.
