| 摘要 |
<p>A mobile track laying machine arranged to move in a working direction from a newly laid corrected to a newly laid uncorrected track section corrects the position of the track at a track correction station. The track correction is controlled by a reference system which includes a reference associated with a track rail. The reference extends in a direction opposite the working direction towards the track correction station between two end points spaced from each other along the track one in the old track section and the other in the uncorrected newly laid track section, and means is provided to position the reference solely in dependence on the position of the track in the old track section.</p> |
