140 EXHIBIT 12, Page 1 of 1 NORFOLK SOUTHERN CORPORATION AND SUBSIDIARIES COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES (Millions of Dollars) Year ended December 31 ------------------------------------------------ 2001 2000 1999 1998 1997 ---- ---- ---- ---- ---- EARNINGS Income from continuing operations before income taxes as reported $ 553 $ 250 $ 351 $ 845 $ 998 Add: 	Total interest expenses (as detailed below) 674 721 708 688 530 	Amortization of 	 capitalized interest 5 5 4 3 3 	Income (loss) of 	 partially owned 	 entities (1) 39 60 47 165 113 	Subsidiaries' preferred 	 dividend requirement 2 2 2 2 2 ------- ------ ------ ------ ------ 		Income before 		 income taxes, 		 as adjusted $ 1,273 $ 1,038 $ 1,112 $ 1,703 $ 1,646 ======= ====== ====== ====== ====== FIXED CHARGES Interest expense on debt $ 553 $ 551 $ 531 $ 516 $ 385 Other interest expense 2 42 35 27 32 Calculated interest portion of rent expense 41 40 35 31 30 NS' share of Conrail interest 78 88 107 114 83 ------- ------ ------ ------ ------ 		Total interest 		 expenses 674 721 708 688 530 Capitalized interest 17 18 15 21 17 Subsidiaries' preferred dividend requirement on a pretax basis 4 4 4 4 4 ------- ------ ------ ------ ------ 		Total fixed charges $ 695 $ 743 $ 727 $ 713 $ 551 ======= ====== ====== ====== ====== RATIO OF EARNINGS TO FIXED CHARGES 1.83 1.40 1.53 2.39 2.99 (1) Includes: (a) the distributed income of 20%-49% owned entities, net of equity recorded in undistributed income and the minority income of consolidated entities which have fixed charges; and (b) NS' share of Conrail's income before income taxes, net of equity in earnings of Conrail included in NS' income from continuing operations before taxes as reported. The computations do not include $0.3 million of interest expense related to $7.8 million of debt guaranteed for a less than 50% owned entity.