Track test monitoring system using a multipurpose experimental train

In order to inspect the condition of tracks, which support railway cars, track irregularity is measured four times a year along conventional lines by track inspection cars, called "East-i".Track irregularity and the track materials that cannot be inspected with the track inspection car are regularly inspected by track patrolling on foot and/or using hand-held type inspection instruments.With the purpose of reducing track patrol labor and maintenance costs, as well as to improve inspection quality, we have been developing a track monitoring system that is installed on a commercial car and monitors the track with greater frequency.This paper provides the outline for a track measurement device that uses the inertial mid-chord offset method and a track-material monitoring device, both of which have been developed to monitor the track, and presents the results of installing these devices on the multipurpose experimental train (called "MUE-Train") on conventional lines.