A Multiperiod Vehicle Lease Planning for Urban Freight Consolidation Network

Table 1

Test results of the proposed algorithm for the problem instances with .

LB	UB	%Gap	Time [s]	LB	UB	%Gap	Time [s]	LB	UB	%Gap	Time [s]
20	5	5	212996.81	224714	5.50	53.16	461155.84	489788	6.21	98.66	929519.50	1002248	7.82	230.75
20	5	5	216811.19	241662	11.46	65.11	460583.37	504220	9.47	107.86	948275.80	1025174	8.11	255.70
22	3	5	279876.66	298848	6.78	240.95	573183.77	611568	6.70	461.84	1192304.31	1289542	8.16	691.83
22	3	5	272613.72	294054	7.86	212.24	554945.75	600348	8.18	432.34	1170739.75	1265118	8.06	419.22
13	5	12	332774.01	355556	6.85	57.92	683250.91	728424	6.61	127.08	1434397.96	1536928	7.15	272.66
13	5	12	304624.33	340794	11.87	48.02	650095.80	714146	9.85	112.13	1343684.15	1470888	9.47	296.05
13	3	14	413042.22	440862	6.74	50.27	872661.27	943590	8.13	109.41	1819085.70	1956382	7.55	325.81
13	3	14	408811.15	439939	7.61	58.99	850207.47	916393	7.78	132.24	1768298.40	1911291	8.09	302.02
5	5	20	243255.92	257018	5.66	42.53	532275.53	565122	6.17	75.63	1088310.70	1168786	7.39	191.48
5	5	20	211330.59	238778	12.99	41.20	510637.65	562726	10.20	96.13	1066249.72	1139144	6.84	211.16
5	3	22	268067.28	282174	5.26	33.77	547072.94	578438	5.73	75.20	1129752.50	1206642	6.81	120.70
5	3	22	287200.52	320211	11.49	56.61	563613.65	613835	8.91	68.11	1188680.85	1282241	7.87	129.75
Average					8.34	80.06			7.83	158.05			7.78	287.26