Semi-automated as-built modeling of light rail system guide beams

Pingbo Tang, Burcu Akinci, Daniel Huber

Research output: Chapter in Book/Report/Conference proceedingConference contribution

7 Scopus citations

Abstract

For a light rail system, smooth contact between the vehicle and the guide beam is critical for reducing the friction and the vibration of an operating vehicle. Therefore, the shape of guide beams needs to be controlled with mm-level accuracy during the construction. Currently, most methods for detecting shape defects of guide beams, such as experimental run of vehicles, are costly and tedious, and can only identify defects after the completion of the construction, causing reworks and delays. From dense point clouds collected by laser scanners, inspectors can manually extract geometric features and conduct virtual inspections of guide beams. However, the manual geometric feature extraction process impedes effective utilization of point clouds for the shape analysis of guide beams. This research developed a semi-automatic approach for simultaneously extracting the axis parameters (e.g., radius) and cross-section features (e.g., width) of a guide beam using a Hough-Transform based approach, and discusses factors (e.g., data density) influencing the performance of this approach.

Original languageEnglish (US)
Title of host publicationConstruction Research Congress 2010
Subtitle of host publicationInnovation for Reshaping Construction Practice - Proceedings of the 2010 Construction Research Congress
Pages122-131
Number of pages10
DOIs
StatePublished - Sep 10 2010
EventConstruction Research Congress 2010: Innovation for Reshaping Construction Practice - Banff, AB, Canada
Duration: May 8 2010May 10 2010

Publication series

NameConstruction Research Congress 2010: Innovation for Reshaping Construction Practice - Proceedings of the 2010 Construction Research Congress

Other

OtherConstruction Research Congress 2010: Innovation for Reshaping Construction Practice
CountryCanada
CityBanff, AB
Period5/8/105/10/10

Keywords

  • 3D Modeling
  • Geometric feature extraction
  • Information retrieval
  • Laser scanning
  • Quality control
  • Surveying

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Safety, Risk, Reliability and Quality
  • Building and Construction

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  • Cite this

    Tang, P., Akinci, B., & Huber, D. (2010). Semi-automated as-built modeling of light rail system guide beams. In Construction Research Congress 2010: Innovation for Reshaping Construction Practice - Proceedings of the 2010 Construction Research Congress (pp. 122-131). (Construction Research Congress 2010: Innovation for Reshaping Construction Practice - Proceedings of the 2010 Construction Research Congress). https://doi.org/10.1061/41109(373)13