Comparison of experienced and novice cost estimator behaviors in information pull and push methods

Download

index.pdf

Date

2010-02-01

Author

Kiziltas, Semiha
Akinci, Burcu
Gonzalez, Cleotilde

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

164
views

0
downloads

Construction cost estimators mainly use analogy-based decision-making processes while estimating activity production rates in new bids They need to search information items that will help them in understanding the differences and similarities between the current and previously Completed projects to select appropriate production rates and make necessary adjustments to the selected production rates. The objective of the study is to understand the effect of information pull-push methods on the behaviors of cost estimators when they refer to information items from historical sources in structuring their decisions. Eleven experienced estimators and 11 novice civil engineering candidates participated in an experiment involving card games, which simulated the information pull method. and in another experiment involving a prototype system, which simulated the information push method Results showed that novices can behave like experienced estimators when information relevant to a decision is pushed to them This result has implications for the design of information systems Results show that it is possible to improve the estimates of novice estimators by providing them with decision support tools designed with the right information delivery method for their level of experience

Subject Keywords

Civil and Structural Engineering, General Environmental Science

URI

https://hdl.handle.net/11511/66683

Journal

CANADIAN JOURNAL OF CIVIL ENGINEERING

DOI

https://doi.org/10.1139/l09-152

Collections

Department of Civil Engineering, Article

Suggestions

OpenMETU
Core

Project appraisal and selection using the analytic network process Dikmen Toker, İrem; Birgönül, Mustafa Talat (Canadian Science Publishing, 2007-07-01) Where prioritization and selection process of large-scale construction projects is concerned, governments should consider various quantitative and qualitative criteria when choosing the best project alternative. The traditional benefit-cost (B/C) analysis has some drawbacks in terms of analyzing qualitative attributes that cannot be easily expressed in monetary terms. To eliminate this limitation, multicriteria decision-making techniques are proposed for the solution of project prioritization problems. In t...
Risk assessment of international construction projects using the analytic network process Bu-Qammaz, Amani Suliman; Dikmen Toker, İrem; Birgönül, Mustafa Talat (Canadian Science Publishing, 2009-07-01) In this study, an analytic network process (ANP), which can handle the interrelations between risk related factors, is proposed as a reliable technique for measuring the level of risk associated with international construction projects. Within this context, ANP is used to derive the relative priorities of risk factors as an input to a decision support tool, which can be utilized during bidding decisions. The decision support tool may help a decision maker to estimate the level of risk so that alternative pr...
Automated Generation of Customized Field Data Collection Templates to Support Information Needs of Cost Estimators Kiziltas, Semiha; Akinci, Burcu (American Society of Civil Engineers (ASCE), 2010-03-01) While estimating activity production rates, cost estimators rely on historical production rates. To have realistic and useful cost estimates based on historical production rates, such production rate data should be augmented with historical contextual information that depict conditions under which activity production rates were achieved in past projects. This information is needed in determining which production rate to use among alternates for a similar activity existing in a new bid. Estimators need conte...
Analytical formulation of maximum length limits of integral bridges on cohesive soils Dicleli, Murat (Canadian Science Publishing, 2005-08-01) This paper presents an analytical approach for predicting the length limits of integral bridges built on cohesive soils based on the flexural strength of the abutments and the low cycle fatigue performance of the steel H-piles at the abutments under cyclic thermal loading. First, H-piles that can accommodate large inelastic deformations are determined considering their local buckling instability. Then, a damage model is used to determine the maximum cyclic deformations that such piles can sustain. Next, non...
Geographic information system-based visualization system for planning and monitoring of repetitive construction projects Sönmez, Rifat (Canadian Science Publishing, 2008-11-01) This study presents a visualization system based on a geographic information system (GIS) for planning and monitoring the progress of construction projects that are repetitive due to their geometrical layout. A prototype system was developed and applied to an actual pipeline project to demonstrate the advantages of the proposed approach. The primary advantage of the system is improved visualization of geographical conditions and their impact on the progress rate. Enhanced visual representation of the schedu...

Citation Formats

S. Kiziltas, B. Akinci, and C. Gonzalez, “Comparison of experienced and novice cost estimator behaviors in information pull and push methods,” CANADIAN JOURNAL OF CIVIL ENGINEERING, pp. 290–301, 2010, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/66683.