Közlekedéstudományi Szemle, 1991 (41. évfolyam, 1-12. szám)
1991 / 1. szám
SUMMARY Page Mrs. Nádas, P.: Changes to Be Expected in Conditions of Danube Navigation ......................................................................... 1 The author deals with the study on water transportation accepted by the latest Conference of the European Ministers of Transport, and analyses the changes to be expected in conditions of Danube navigation. Mrs. Hatfaludy, Oajári J.: Some Essential Questions of Kail Management Considering of Fatigue and Wear of Rails ......................................................................................................................................................................................................... 7 The author shows a procedure which makes the rail management instead of the so far used rather practical experiences by analysing the effective load of railway lines and the bearing force of rails. Mr. Holló, P.: Accident Risk of Beginner-Drivers as a Function of Age and Driving Experience......................................... 23 The author demonstrates by means of different calculation methods that beginner, young drivers have the gratest accident risk. He suggests to take this f act into consideration when reforming the drivers’ training. Mr. Unyi, B: Railway Lines Celebrating Their Jubilees ................................................................................................................... 29 The first railway line in Hungary was built 160 years ago. The author shows the Hungarian railway lines dividing them into different groups of railway lines built 150, 126, 100, 75 and 50 years ago. International Review: Composed by Mr. Szabó, I.