Abstract
Ballasted track is widely as a main track structure and requires regular maintenance because track geometry deteriorates under the influence of dynamic loads. Therefore, several pieces of research into prediction and prevention of ballasted track deterioration, and maintenance of deteriorated ballasted track have been conducted by RTRI or other organizations around the world. This paper introduces some of the results obtained from the recent research into ballasted track carried out by RTRI and suggests possible future developments in this field.
