| 摘要 |
<p>A train assembly is moved continuously along a right of way during a track renewal or replacement operation, with a first train section of cars moving on the old track rails and a second train section of cars moving on the new track rails. In an intermediate trackless section, the old track is replaced by the new track, and an intermediate train section bridges the trackless section of the right of way. The intermediate train section is pivotally coupled to the first and second train sections, the latter being held at a predetermined distance. Track renewal means operable in a timed sequence during the continuous movement of the train assembly are mounted on the cars.</p> |
