Rail-bound transportation system for a track building machine

A method for a renovation of a rail track which comprises a subgrade, a road bed and a track panel laid thereon and having rails and sleepers, wherein the method comprises the following steps:

• removing an existing track panel;
• removing an existing road bed;
• and
• removing an existing subgrade or part of a subgrade;
• installing a subgrade or a part of a subgrade;
• installing a road bed;
• and
• installing a track panel;
• wherein the method further comprises at least one of the following steps:
• carrying out the installation of the track panel, the installation of the road bed and the installation of the subgrade or of part of the subgrade in a single operation by means of a railroad work vehicle;
• and
• carrying out the removal of the existing track panel, the removal of the existing road bed and the removal of the existing subgrade or part of the subgrade in a single operation by means of a railroad work vehicle;
• and wherein the method further comprises at least one of the following steps:
• transporting material for the road bed to be installed, and, simultaneously, material for the subgrade or part of the subgrade to be installed, inward in a rail-bound manner in the operation of installing the subgrade or part of the subgrade, installing the track panel and installing the road bed;
• and
• transporting material of the removed road bed, and, simultaneously, material of the removed subgrade or part of the subgrade away in a rail-bound manner in the operation of removing the existing track panel, removing the existing road bed and removing the existing subgrade or part of the subgrade.