Visual representation of construction progress monitoring metrics on time-lapse photographs

Mani Golparvar Fard, Aravind Sridharan, Sanghyun Lee, Feniosky Peña-Mora

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

Abstract

A low cost progress data collection technique for construction projects using time-lapse photography or real-time videotaping can provide a wealth of spatial and temporal information for progress data collection. The benefits of using photographs would be maximized if the progress deviations between planned and actual (as-built) performance are visually shown on these photographs. The importance of such visual representation of construction progress is well understood when the participation of diverse parties with different levels of expertise (from owners to subcontractors) is considered. Current formats of monitoring reports (e.g. textual progress reports, progress graphs or charts) may not properly and quickly communicate progress situations and would make understanding of the progress situation difficult. Current methods of monitoring require manual data collection and extensive data extraction from construction documents making progress monitoring a time-consuming process and distracts managers from the important task of decision making. As an effort to address this issue, a visual representation of construction progress is proposed that aims to picture the progress situation on time-lapse photographs (representing actual progress), superimpose the planned progress (obtained from the 4D as-planned model), and provide the clear comparison in an augmented reality environment between as-planned and as-built progress. A series of visualization techniques (e.g. colour and colour gradient) is developed to communicate and visualize detected discrepancies and progress performance metrics. Schedule deviations, construction sequence, budget distribution and earned value analysis metrics (cost performance and schedule performance indices) are also visualized. These techniques if automated could accurately and quickly communicate the progress situation on photographs and provide a powerful tool for prompt progress control decision making.

Original languageEnglish (US)
Title of host publicationCME 2007 Conference - Construction Management and Economics
Subtitle of host publication'Past, Present and Future'
Pages1693-1701
Number of pages9
StatePublished - Dec 1 2007
Event25th Inaugural Construction Management and Economics: 'Past, Present and Future' Conference, CME 2007 - Reading, United Kingdom
Duration: Jul 16 2007Jul 18 2007

Publication series

NameCME 2007 Conference - Construction Management and Economics: 'Past, Present and Future'

Other

Other25th Inaugural Construction Management and Economics: 'Past, Present and Future' Conference, CME 2007
CountryUnited Kingdom
CityReading
Period7/16/077/18/07

Keywords

  • Augmented reality
  • Building performance
  • Progress monitoring
  • Visualization

ASJC Scopus subject areas

  • Building and Construction
  • Architecture

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  • Cite this

    Golparvar Fard, M., Sridharan, A., Lee, S., & Peña-Mora, F. (2007). Visual representation of construction progress monitoring metrics on time-lapse photographs. In CME 2007 Conference - Construction Management and Economics: 'Past, Present and Future' (pp. 1693-1701). (CME 2007 Conference - Construction Management and Economics: 'Past, Present and Future').