Method for erecting a transportation structure

A method for erecting a portion of a transportation structure including:

• a plurality of piers substantially regularly spaced along a longitudinal axis of the portion of transportation structure, a first plurality of girders positioned on at least some of the piers and forming:
• a first assembly of tube segments, the first assembly being capable of being placed under low air pressure and capable of allowing the circulation of pods travelling substantially free of air friction in the tube segments,
• a first rooftop transportation pathway running from the first extremity of the portion of the transportation structure to the second extremity,
• each girder of the first plurality of girders including
• a tube segment of the first assembly of tube segments,
• a metallic structure embedding the tube segment of the first assembly of tube segments, the upper surface of the metallic structure being a portion of the first rooftop transportation pathway,
• a second plurality of girders positioned on at least some of the piers and forming:
• a second assembly of tube segments, the second assembly being capable of being placed under low air pressure and capable of allowing the circulation of pods travelling substantially free of air friction in the tube segments,
• a second rooftop transportation pathway running from the first extremity of the portion of the transportation structure to the second extremity, alongside the first rooftop transportation pathway,
• each girder of the second plurality of girders comprising:
• a tube segment of the second assembly of tube segments,
• a metallic structure embedding the tube segment of the second assembly of tube segments, the upper surface of the metallic structure being a portion of the second rooftop transportation pathway,
• the method comprising:
• conveying with at least one vehicle girders of the first and second pluralities along the first rooftop transportation pathway formed by the girders of the first plurality of girders previously positioned,
• positioning the girders at use positions alternately at the second extremity at the first rooftop transportation pathway and at the second extremity at the second rooftop transportation pathway and having the at least one vehicle return to the first extremity of the portion of the transportation structure along the second rooftop transportation pathway formed by the girders of the second plurality of girders previously positioned.

A portion of a transportation structure for pods traveling substantially free of air friction in an assembly of tube segments placed under low air pressure, the portion of the transportation infrastructure comprising:

• a plurality of piers substantially regularly spaced along a longitudinal axis of the portion of transportation structure;
• a first plurality of girders positioned on at least some of the piers and forming:
• a first assembly of tube segments, the first assembly being capable of being placed under low air pressure and capable of allowing the circulation of pods travelling substantially free of air friction in the tube segments, and
• a first rooftop transportation pathway running from the first extremity of the portion of the transportation structure to the second one,
• each girder of the first plurality of girders including:
• a tube segment of the first assembly of tube segments,
• a metallic structure embedding the tube segment of the first assembly of tube segments, the upper surface of the metallic structure being a portion of the first rooftop transportation pathway,
• a second plurality of girders positioned on at least some of the piers and forming:
• a second assembly of tube segments, the second assembly being capable of being placed under low air pressure and capable of allowing the circulation of pods travelling substantially free of air friction in the tube segments,
• a second rooftop transportation pathway running from the first extremity of the portion of the transportation structure to the second one, alongside the first rooftop transportation pathway,
• each girder of the second plurality of girders comprising:
• a tube segment of the second assembly of tube segments,
• a metallic structure embedding the tube segment of the second assembly of tube segments, the upper surface of the metallic structure being a portion of the second rooftop transportation pathway.