PAGE 117 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 ------------------------------------------------ 1993 1992 1991 (1) 1990 1989 ---- ---- ---- ---- ---- EARNINGS Income before income taxes as reported $ 898.6 $ 875.3 $ 143.6 $ 875.4 $ 932.7 Add: Total interest expenses (as detailed below) 160.7 161.6 151.4 121.4 95.8 Income (loss) of partially owned entities (2) (2.6) 2.0 1.3 0.8 1.0 Subsidiaries' preferred dividend requirement 2.7 2.7 3.3 3.2 3.6 -------- -------- -------- -------- -------- Income before income taxes, as adjusted $1,059.4 $1,041.6 $ 299.6 $1,000.8 $1,033.1 ======== ======== ======== ======== ======== FIXED CHARGES Interest expense on debt $ 98.6 $ 109.0 $ 99.7 $ 78.0 $ 50.7 Other interest expense 38.7 33.0 34.8 26.6 28.2 Calculated interest portion of rent expense 23.4 19.6 16.9 16.8 16.9 -------- -------- -------- -------- -------- Total interest expenses 160.7 161.6 151.4 121.4 95.8 Capitalized interest 21.7 17.9 19.3 17.8 18.5 Subsidiaries' preferred dividend requirement on a pretax basis 4.3 4.2 4.9 5.2 5.5 -------- -------- -------- -------- -------- Total fixed charges $ 186.7 $ 183.7 $ 175.6 $ 144.4 $ 119.8 ======== ======== ======== ======== ======== RATIO OF EARNINGS TO FIXED CHARGES 5.67 5.67 1.71(1) 6.93 8.62 (1)Included in 1991 results is a special charge that increased transportation operating expenses by $680 million (see Note 15 of Notes to Consolidated Financial Statements on page 85). (2)Includes 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. 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 (see Schedule VII on page 91).