A Novel Method for Evaluating Dredging Productivity Using a Data Envelopment Analysis-Based Technique

Table 7

Daily dredging productivity by the proposed method.

Work day	Input			Output	Daily dredging productivity
	Hydraulic excavator (SL-330)	Hydraulic excavator (320B)	Daily trucks	Daily dredging (M^3)	1 input result	3 input result
1	2	7	79	1086	0.239	0.494
2	1	8	175	2936	0.543	0.603
3	1	8	385	6804	0.934	0.942
4	2	7	235	4147	0.698	0.762
5	2	7	178	3811	0.701	0.794
6	2	7	194	3763	0.675	0.756
7	2	7	353	6135	0.877	0.906
8	1	8	142	2087	0.408	0.529
9	1	8	194	4203	0.754	0.782
10	2	7	203	4565	0.807	0.898
11	2	7	292	4857	0.753	0.798
12	2	7	292	5280	0.818	0.868
13	2	7	193	3288	0.590	0.662
14	1	8	193	5367	0.964	1.000
15	1	8	296	5078	0.783	0.798
16	2	7	267	4569	0.733	0.787
17	2	7	275	4636	0.736	0.787
18	2	7	277	4650	0.736	0.786
19	2	7	302	5173	0.791	0.835
20	1	8	351	6055	0.867	0.878
21	2	7	427	7397	0.966	0.972
22	2	7	443	7741	0.992	0.994
23	2	7	409	7164	0.955	0.968
24	1	8	310	5431	0.821	0.836
25	2	7	333	5835	0.856	0.891
26	2	7	359	6290	0.892	0.920
27	2	7	443	7751	0.993	0.995
28	1	8	343	6007	0.869	0.881
29	1	8	403	7062	0.948	0.955
30	2	7	412	7210	0.958	0.969
31	2	7	423	7396	0.970	0.978
32	2	7	372	6510	0.908	0.932
33	2	7	421	7375	0.970	0.978
34	1	8	423	7410	0.972	0.976
35	2	7	422	7384	0.970	0.978
36	2	7	435	7620	0.986	0.99
37	2	7	437	7627	0.984	0.988
38	1	8	449	7841	0.998	1.000
39	2	7	449	7847	0.999	0.999
40	2	7	450	7866	1.000	1.000
41	2	7	434	7592	0.983	0.988
42	2	7	436	7625	0.985	0.989
43	1	8	426	7452	0.974	0.978
44	2	7	431	7540	0.980	0.985
45	2	7	440	7708	0.991	0.994
46	2	7	437	7643	0.986	0.990
47	1	8	383	6703	0.922	0.931
48	1	8	433	7580	0.983	0.986
49	1	8	436	7634	0.986	0.989
50	2	7	443	7754	0.994	0.996
51	2	7	435	7616	0.985	0.989
52	1	8	437	7643	0.986	0.989
53	2	7	433	7577	0.982	0.987
54	2	7	431	6754	0.878	0.883
55	2	7	443	7746	0.993	0.995
56	2	7	447	7752	0.989	0.990
57	1	8	10	400	0.102	0.360
58	1	8	10	400	0.102	0.360
59	2	7	303	5298	0.809	0.853
60	2	7	129	2266	0.453	0.632
61	2	7	40	686	0.163	0.617
62	2	7	252	5177	0.849	0.919
63	1	8	380	6651	0.919	0.927
64	1	8	355	6212	0.885	0.896
65	2	7	303	5298	0.809	0.853
66	2	7	129	2266	0.453	0.632