Abstracts – Browse Results

Search or browse again.

Click on the titles below to expand the information about each abstract.
Viewing 12 results ...

Ashuri, B and Tavakolan, M (2012) Fuzzy Enabled Hybrid Genetic Algorithm–Particle Swarm Optimization Approach to Solve TCRO Problems in Construction Project Planning. Journal of Construction Engineering and Management, 138(09), 1065–74.

Choi, K, Son, K, Woods, P and Park, Y J (2012) LEED Public Transportation Accessibility and Its Economic Implications. Journal of Construction Engineering and Management, 138(09), 1095–102.

Dikmen, I, Birgonul, M T, Tah, J H M and Ozer, A H (2012) Web-Based Risk Assessment Tool Using Integrated Duration–Cost Influence Network Model. Journal of Construction Engineering and Management, 138(09), 1023–34.

Fong, P S W and Chen, L (2012) Governance of Learning Mechanisms: Evidence from Construction Firms. Journal of Construction Engineering and Management, 138(09), 1053–64.

Gilkey, D P, del Puerto, C L, Keefe, T, Bigelow, P, Herron, R, Rosecrance, J and Chen, P (2012) Comparative Analysis of Safety Culture Perceptions among HomeSafe Managers and Workers in Residential Construction. Journal of Construction Engineering and Management, 138(09), 1044–52.

Hajifathalian, K, Wambeke, B W, Liu, M and Hsiang, S M (2012) Effects of Production Control Strategy and Duration Variance on Productivity and Work in Process: Simulation-Based Investigation. Journal of Construction Engineering and Management, 138(09), 1035–43.

Liu, D, Sun, J, Zhong, D and Song, L (2012) Compaction Quality Control of Earth-Rock Dam Construction Using Real-Time Field Operation Data. Journal of Construction Engineering and Management, 138(09), 1085–94.

Moret, Y and Einstein, H H (2012) Experience in Expert Estimation of Probabilities and Correlations for Rail Line Construction. Journal of Construction Engineering and Management, 138(09), 1103–6.

  • Type: Journal Article
  • Keywords: Probability distribution; Railroad tracks; Infrastructure; Construction; Expert interviews; Probability and correlation estimation; Biases; Questionnaire; Rail lines;
  • ISBN/ISSN: 0733-9364
  • URL: https://doi.org/10.1061/(ASCE)CO.1943-7862.0000505
  • Abstract:
    To counteract cost escalation and delays in infrastructure construction, an estimation model has been developed that simulates project uncertainty with probability distributions, correlations, and disruptive events. When applied to a new rail line project, three model inputs were not available from the designers: time distributions, cost correlations, and probability of occurrence and cost/time impacts of disruptive events. Experts in the field of tunnel-, viaduct-, and earthwork construction were asked to estimate the unavailable information. This paper presents a brief overview of biases that occur when experts estimate probabilities, the calibration steps taken to prevent the experts from being affected by such biases, and example questions from the questionnaire, followed by an in-depth discussion of findings. Unexpectedly, the experts followed radically different estimation techniques: the tunnel expert recalled values from past projects, the viaduct expert calculated the required values, while the earthwork expert estimated the mode value, and from it, the extreme values. Depending on estimation technique, a bias influences or cannot influence an expert. It was also observed that experts not familiar with probability theory encountered major difficulties in correlation estimation, despite concept explanation and visualization. Thus, for a successful correlation estimation it is paramount that experts be acquainted with probability theory in addition to being knowledgeable in their fields.

Moret, Y and Einstein, H H (2012) Modeling Correlations in Rail Line Construction. Journal of Construction Engineering and Management, 138(09), 1075–84.

Shewchuk, J P and Guo, C (2012) Panel Stacking, Panel Sequencing, and Stack Locating in Residential Construction: Lean Approach. Journal of Construction Engineering and Management, 138(09), 1006–16.

Son, K, Choi, K, Woods, P and Park, Y J (2012) Urban Sustainability Predictive Model Using GIS: Appraised Land Value versus LEED Sustainable Site Credits. Journal of Construction Engineering and Management, 138(09), 1107–12.

Xia, B, Chan, A, Molenaar, K and Skitmore, M (2012) Determining the Appropriate Proportion of Owner-Provided Design in Design-Build Contracts: Content Analysis Approach. Journal of Construction Engineering and Management, 138(09), 1017–22.