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fbtwitterlinkedinvimeoflicker grey 14rssslideshare1
A. Soni; S. Robson; B. Gleeson (2014)
Publisher: Copernicus Publications
Journal: The International Archives of the Photogrammetry
Languages: English
Types: Article
Subjects: TA1-2040, T, TA1501-1820, Applied optics. Photonics, Engineering (General). Civil engineering (General), Technology
This paper presents the capabilities of detecting relevant geometry of railway track for monitoring purposes from static terrestrial laser scanning (TLS) systems at platform level. The quality of the scans from a phased based scanner (Scanner A) and a hybrid timeof- flight scanner (Scanner B) are compared by fitting different sections of the track profile to its matching standardised rail model. The various sections of track investigated are able to fit to the model with an RMS of less than 3 mm. Both scanners show that once obvious noise and artefacts have been removed from the data, the most confident fit of the point cloud to the model is the section closest to the scanner position. The results of the fit highlight the potential to use this method as a bespoke track monitoring tool during major redevelopment projects where traditional methods, such as robotic total stations, results in missed information, for example due to passing trains or knocked prisms and must account for offset target locations to compute track parameters.
  • The results below are discovered through our pilot algorithms. Let us know how we are doing!

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    • Cosser, E., G. W. Roberts, et al. (2003). Measuring the dynamic deformation of bridges using a total station. Proceedings, 11th FIG Symposium on Deformation Measurements, Santorini, Greece.
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    • Nuttens, T., C. Stal, et al. (2014). "Methodology for the ovalization monitoring of newly built circular train tunnels based on laser scanning: Liefkenshoek Rail Link (Belgium)." Automation in Construction 43: 1-9.
    • Oude Elberink, S., K. Khoshelham, et al. (2013). "Rail track detection and modelling in mobile laser scanner data." ISPRS Annals of Photogrammetry, Remote Sensing and Spatial Information Sciences 1(2): 223-228.
    • Psimoulis, P. A. and S. C. Stiros (2007). "Measurement of deflections and of oscillation frequencies of engineering structures using Robotic Theodolites (RTS)." Engineering Structures 29(12): 3312-3324.
    • Standardization, E. C. f. (2008). Railway applications - Track - Track geometry quality. Part 1: Characterisation of track geometry. Brussels.
    • Tse, J. and J. Luk (2011). Design and Implementation of Automatic Deformation Monitoring System for the Construction of Railway Tunnel: A Case Study in West Island Line. 14th FIG Symposium on Deformation Measurement and Analysis, Hong Kong.
    • Van Gosliga, R., R. Lindenbergh, et al. (2006). "Deformation analysis of a bored tunnel by means of terrestrial laser scanning." Image Engineering and Vision Metrology. ISPRS Commission 36: 167-172.
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