الفهرس 
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Abstract
The present thesis deals with investigating annual accidents during the period of 2013 till 2017of the six admintrative zones for Egyptian National Railway (ENR). These accidents were classified as absolute and relative values according to their types to determine the worst zones and the worst accident types.
To realize this goal, data collections were obtained for accident fluctuations and the traffic calculated by the use of the official time table 2016 in train.km/day for the ENR six zones.
Accidents cause damage, fatalities, injuries and losses of material, the present thesis conclude to arrange the priority of the zone and type of accidents using a modified risk level based on severity and frequency, then one can prepare a scientific and practical plan to put the important conclusions and useful recommendations for ensuring safety operations with low costs and minimizing the dangerous accidents.
The thesis represents one of useful contributions to propose the effective solutions for the decision maker to enface this very dangerous problem.