Time study on skidding in reduced impact timber harvesting
|
No. of |
Volume |
Skidding |
Time required for |
Total | |||||
No. |
logs |
of load |
distance |
winching |
skidding |
time | |||
(m3) |
(m) |
Distance (m) |
Time required (minutes) |
Empty travel (minutes) |
Loaded travel (minutes) |
(minutes) | |||
1. |
166/10 |
2.9122 |
451.3 |
8.5 |
6.77 |
12.05 |
12.05 |
43.25 | |
2. |
9/1 |
5.1683 |
212.4 |
1.5 |
2.10 |
5.97 |
3.90 |
42.56 | |
3. |
112/1 |
3.0926 |
433.3 |
2.0 |
1.52 |
4.34 |
3.50 |
18.85 | |
4. |
246/8 |
3.8247 |
402.3 |
4.5 |
1.43 |
14.45 |
9.87 |
27.06 | |
5. |
112/8 |
4.1280 |
240.7 |
3.0 |
1.53 |
7.17 |
1.15 |
20.89 | |
6. |
125/8 |
4.0900 |
410.1 |
1.5 |
1.30 |
13.78 |
15.66 |
54.84 | |
7. |
20/8 |
2.4709 |
306.0 |
4.0 |
3.00 |
10.07 |
8.58 |
23.56 | |
8. |
70/8 |
2.4709 |
306.0 |
10.0 |
11.50 |
6.62 |
7.35 |
27.70 | |
9. |
40/8 |
9.7841 |
275.5 |
1.0 |
0.98 |
9.97 |
21.03 |
53.97 | |
10. |
45/8 |
3.1664 |
275.5 |
10.0 |
15.61 |
6.42 |
10.03 |
33.01 | |
11. |
139/7 |
3.3709 |
218.4 |
2.0 |
1.13 |
16.83 |
4.70 |
23.74 | |
12. |
253/9 |
2.6083 |
263.1 |
6.0 |
3.72 |
17.50 |
7.03 |
29.29 | |
13. |
27/7 |
5.2834 |
263.5 |
2.0 |
5.87 |
31.32 |
11.90 |
50.10 | |
14. |
25/7 |
2.8035 |
263.5 |
6.5 |
10.53 |
7.07 |
8.55 |
27.48 | |
15. |
110/9 |
1.7954 |
153.8 |
1.5 |
1.43 |
23.9 |
6.18 |
91.58 | |
16. |
191/5 |
3.0413 |
301.8 |
3.5 |
1.72 |
8.10 |
8.10 |
32.51 | |
17. |
192/5 |
2.3606 |
238.0 |
3.5 |
4.27 |
6.33 |
5.60 |
17.11 | |
18. |
218/5 |
2.1662 |
274.8 |
8.5 |
3.21 |
13.82 |
8.17 |
26.16 | |
19. |
61/5 |
3.3251 |
283.9 |
2.0 |
1.90 |
10.57 |
5.43 |
19.34 | |
20. |
305/6 |
1.9463 |
592.8 |
1.5 |
3.53 |
10.86 |
10.86 |
27.00 | |
21. |
297/6 |
6.6282 |
592.8 |
3.0 |
2.65 |
26.75 |
11.62 |
57.50 | |
335/6 |
|||||||||
22. |
356/4 |
7.4596 |
274.8 |
6.0 |
3.11 |
16.57 |
12.02 |
33.05 | |
230/4 |
|||||||||
23. |
238/4 |
3.4639 |
495.1 |
6.0 |
5.31 |
12.45 |
10.12 |
45.31 | |
255/4 |
|||||||||
24. |
286/4 |
3.6235 |
490.5 |
6.5 |
3.82 |
13.10 |
14.98 |
35.17 | |
25. |
239/2 |
3.3354 |
209.0 |
2.0 |
1.60 |
5.68 |
5.82 |
14.00 | |
26. |
112/2 |
14.0836 |
265.7 |
4.0 |
4.50 |
6.77 |
11.41 |
24.88 | |
27. |
61/4 |
3.4932 |
458.6 |
4.5 |
1.26 |
7.72 |
7.72 |
24.73 | |
28. |
83/4 |
4.0419 |
458.6 |
5.0 |
2.45 |
15.90 |
11.12 |
33.13 | |
29. |
159/3 |
1.6031 |
361.1 |
1.5 |
0.50 |
4.87 |
5.40 |
13.27 | |
30. |
271/3 |
3.9676 |
343.3 |
2.0 |
2.47 |
14.10 |
9.56 |
27.56 | |
31. |
84/1 |
2.5739 |
337.0 |
4.5 |
1.16 |
9.17 |
5.15 |
37.50 | |
32. |
43/1 |
4.7399 |
272.8 |
5.0 |
1.93 |
11.48 |
5.45 |
20.27 | |
Total |
128.8220 |
10,726.0 |
133.0 |
113.81 |
381.61 |
290.01 |
1,056.37 | ||
Average |
4.0257 |
335.2 |
4.2 |
3.55 |
11.93 |
9.06 |
33.01 | ||
Note: Time required for skidtrail construction is 465.09 minutes
