چكيده به لاتين
Abstract
With regard to development of railway industry in whole of the world, and because of major effect of it on transportation of fright and passengers, the importance of increasing of speed and upgrading the infrastructures in railway tracks specified. With these reasons, many countries started to gather and write the criteria for designing the high speed lines.
In this proposal, after reviewing the geometric parameters regulations in the reliable standards in the world like TSI standard, and Iran’s publications and checking some foreign samples regulations in the articles, studying the safety of movement of train in Tehran-Mashhad curves, with approach of increasing the speed, and the results of this research is significant. The results show that increasing of speed, increasing the danger of derailment risk.
Key Words: upgrading tracks, curves, safety, and derailment.
