Exploring for Route Preferences of Subway Passengers Using Smart Card and Train Log Data

Table 7

Results of passenger kilometer for subway lines in Seoul.

Subway lines	Service distance (km)		Number of passengers (trips)			Passenger kilometer (million km)
	Distance (A)	Rank	Total (B)	Trips/service dist. (B/A)	Rank	Total (C)	Passenger kilometer/service dist. (C/A)	Rank
Line 1	195	1	7,754,053	39,764	9	12,237	63	10
Line 2	57	3	23,686,939	415,560	1	27,002	474	1
Line 3	55	5	8,027,244	145,950	4	9,523	173	2
Line 4	68	2	5,783,969	85,058	7	6,813	100	8
Line 5	50	8	7,989,509	159,790	2	8,105	162	4
Line 6	34	9	4,269,248	125,566	5	3,780	111	5
Line 7	56	4	8,714,031	155,608	3	9,531	170	3
Line 8	17	11	1,477,962	86,939	6	1,553	91	9
Line 9	51	7	3,650,051	71,570	8	5,152	101	7
Bundang Line	53	6	1,451,587	50,055	11	2,900	100	11
Shinbundang Line	31	10	1,015,097	35,003	10	3,168	109	6

Total trips of the Seoul subway network: 6,313,176 trips/day. Estimated passenger kilometer of Seoul network: STC, 78,194 m-pkm (100%); proposed algorithm, 88,314 m-pkm (113%).