Producing and securing the exact track geometry on main line tracks by EMSAT combined with GPS technology

The combination of GPS with the mechanised track survey system EMSAT offers a technology which can survey the actual track geometry in absolute co-ordinates. Using the laser reference chord measuring system of the EMSAT, long wave faults up to 250m are detected with an inherent accuracy of < 1mm. With the help of the simultaneous GPS measurements in kinematic mode, these local co-ordinates in ETRF-89 absolute co-ordinates can be measured with an accuracy in the end points of the laser reference chord of 5-10mm in the alignment and 10-15mm in the longitudinal level. This brings advantages in higher accuracy and in cost-efficiency because the large number of track marking points are no longer needed.

Media Info

  • Pagination: 7p.
  • Monograph Title: AusRAIL PLUS 2005, 22-24 November 2005, Sydney, NSW, Australia

Subject/Index Terms

Filing Info

  • Accession Number: 01516887
  • Record Type: Publication
  • Source Agency: ARRB
  • Files: ATRI
  • Created Date: Mar 4 2014 7:57PM