The comparison between the initial and reformed SSDs for random instances SET 1
Instance	Initial						Optmized				Ratio (Optimized/Initial)
	Tasks	Distance	Subgraph	Active	Inactive		Extra-flights	Extra-distance	Subg		Flight	Distance	Subg
R1	50	217833	58	42	16		29	31000	44		58.00%	14.20%	75.90%
R2	100	445255	26	20	6		62	80885	19		62.00%	18.20%	73.10%
R3	150	666925	18	17	1		118	139530	11		78.70%	20.90%	61.10%
R4	100	399107	108	75	33		69	73916	86		69.00%	18.50%	79.60%
R5	200	785009	58	40	18		131	156815	31		65.50%	20.00%	53.40%
R6	300	1270606	29	19	10		161	206765	25		53.70%	16.30%	86.20%
R7	150	633762	163	112	51		102	88623	124		68.00%	14.00%	76.10%
R8	300	1302087	74	56	18		163	183152	52		54.30%	14.10%	70.30%
R9	450	1789981	36	19	17		263	405737	28		58.40%	22.70%	77.80%
R10	200	865380	218	158	60		146	109225	170		73.00%	12.60%	78.00%
R11	400	1715256	104	75	29		282	258225	69		70.50%	15.10%	66.30%
R12	600	2606841	51	39	12		387	398595	37		64.50%	15.30%	72.50%
R13	250	1050985	278	202	76		187	156406	213		74.80%	14.90%	76.60%
R14	500	2025897	123	80	43		315	284843	85		63.00%	14.10%	69.10%
R15	750	3001421	59	42	17		422	370752	41		56.30%	12.40%	69.50%
R16	300	1301787	321	231	90		196	154287	251		65.30%	11.90%	78.20%
R17	600	2504951	151	107	44		405	440164	96		67.50%	17.60%	63.60%
R18	900	3975147	80	57	23		610	868266	54		67.80%	21.80%	67.50%
R19	350	1594071	381	283	98		258	198284	288		73.70%	12.40%	75.60%
R20	700	2933709	187	131	56		535	453575	139		76.40%	15.50%	74.30%
R21	1050	3931531	92	65	27		679	607446	67		64.70%	15.50%	72.80%
R22	400	1755719	438	312	126		279	241109	336		69.80%	13.70%	76.70%
R23	800	3288881	211	136	75		559	443982	154		69.90%	13.50%	73.00%
R24	1200	4936897	99	68	31		802	750839	74		66.80%	15.20%	74.70%
R25	450	1799277	491	361	130		329	225847	370		73.10%	12.60%	75.40%
R26	900	3668517	227	156	71		634	585916	156		70.40%	16.00%	68.70%
R27	1350	5360120	122	82	40		975	1030781	79		72.20%	19.20%	64.80%
R28	500	2235948	543	401	142		337	294211	409		67.40%	13.20%	75.30%
R29	1000	4010203	259	187	72		675	552201	183		67.50%	13.80%	70.70%
R30	1500	6007348	119	80	39		1069	985748	76		71.30%	16.40%	63.90%
Mean			171	122	49		373	359238	126		67.10%	15.70%	72.00%