1 Bezgin APPLICATION OF A NEW CONCEPT AND A METHOD TO ESTIMATE THE VERTICAL 1 IMPACT FORCES ON RAILWAY TRACKS DUE TO TRACK PROFILE IRREGULARITIES 2 3 4 5 Niyazi Özgür Bezgin, Ph.D 6 Associate Professor 7 İstanbul University, Avcilar Campus 8 Department of Civil Engineering, 34320, Avcilar, Istanbul, Turkey 9 Tel: 00.90.533.663.9755; Fax: 00.90.212.591.2629; E-mail: ozgur.bezgin@istanbul.edu.tr 10 11 12 13 Word count: 4925 words text (abstract + keywords + text + references + figure captions and table titles) 14 +10 (tables + figures) * 250 words (each) = 7425 words 15 16 17 18 TRR Paper number: 18-00037 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51