EP 1110-1-8
(Vol. 9)
31 July 03
APPENDIX G
TIRE LIFE AND TIRE WEAR FACTORS (Continued)
SECTION I. TIRE WEAR FACTORS (Continued)
EXAMPLE (Continued)
Average
Severe
Front Tire - Average =
0.59
(CF = 0.65)(WPF-FT = 0.90)
Front Tire - Severe =
0.39
(CF = 0.43)(WPF-FT = 0.90)
Drive Tire - Average =
0.39
(CF = 0.65)(WPF-DTR = 0.70)(GF = 0.85)
Drive Tire - Severe =
0.22
(CF = 0.43)(WPF-DTR = 0.70)(GF = 0.75)
Trailing Tire - Average =
0.65
(CF = 0.65)(WPF-TT = 1.00)
Trailing Tire - Severe =
0.43
(CF = 0.43)(WPF-TT = 1.00)
SECTION II. MAXIMUM TIRE LIFE
Maximum tire life is used in the formula to determine tire wear cost and is
located in appendix F by type of tire.
G-2
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