The Effects of the Tractor and Semitrailer Routing Problem on Mitigation of Carbon Dioxide Emissions

Table 5

The results of the 17 scenarios of the realistic instance.

The central depot city	Tractor quantity	Percentage of satisfied freight demand (%)	Average number of loaded-semitrailer on a route	Average distance span (km)	Percentage of fuel consumption for tractor running alone (%)	CO2 emissions per ton-kilometer (g/tm)
JNA	52	82	4.20	1068	7.20	78.45
JNA*	62	80	3.44	1000	9.04	80.04
QD	44	81	4.93	1102	1.52	73.92
QD*	52	80	4.12	1036	3.75	75.64
ZB	52	81	4.12	1068	3.61	75.53
ZB*	55	81	3.93	1033	4.54	76.27
ZZH	76	80	2.82	1288	28.60	101.96
DY	56	80	3.82	1077	7.34	78.57
DY*	59	80	3.63	1045	8.39	79.47
YT	99	80	2.16	1082	32.66	108.11
WF	49	81	4.43	1047	1.48	73.89
WF*	51	80	4.20	1017	2.47	74.65
JNI	77	80	2.77	1159	27.06	99.81
TA	62	81	3.46	974	8.68	79.72
TA*	64	82	3.39	1010	10.05	80.93
WH	102	80	2.09	1382	43.02	127.76
RZH	72	81	2.99	1074	18.42	89.24
LW	61	81	3.52	1003	8.29	79.38
LW*	63	81	3.41	1026	10.03	80.91
LY	65	82	3.35	1075	15.02	85.67
LY*	67	81	3.21	1065	16.09	86.76
DZH	68	82	3.19	1121	19.07	89.95
LCH	64	80	3.33	1093	15.71	86.37
BZH	57	81	3.77	1028	6.61	77.95
BZH*	59	81	3.64	1023	7.82	78.98
HZ	77	80	2.77	1328	30.78	105.17

∗The results without clone operator.