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Chiang, Y and Cheng, E W L (2009) Perception of Financial Institutions toward Financing PFI Projects in Hong Kong. Journal of Construction Engineering and Management, 135(09), 833–40.
Chou, C, Caldas, C H, O’Connor, J T, Sroka, A W and Goldman, G K (2009) Identification of Decision Drivers for the Strategy of Incorporating Utility Relocations into Highway Construction Contracts. Journal of Construction Engineering and Management, 135(09), 812–8.
Choudhry, R M, Fang, D and Lingard, H (2009) Measuring Safety Climate of a Construction Company. Journal of Construction Engineering and Management, 135(09), 890–9.
De Marco, A, Briccarello, D and Rafele, C (2009) Cost and Schedule Monitoring of Industrial Building Projects: Case Study. Journal of Construction Engineering and Management, 135(09), 853–62.
Dhakal, S, Mrawira, D and Rankin, J (2009) Effect of Specifications Type on the Quality of Paving Contracts in New Brunswick. Journal of Construction Engineering and Management, 135(09), 801–11.
El-adaway, I H and Kandil, A A (2009) Contractors’ Claims Insurance: A Risk Retention Approach. Journal of Construction Engineering and Management, 135(09), 819–25.
Golden, S K and Skibniewski, M J (2009) Immigration and Construction: The Makeup of the Workforce in the Washington, D.C., Metropolitan Area. Journal of Construction Engineering and Management, 135(09), 874–80.
Hartmann, A, Ling, F Y Y and Tan, J S H (2009) Relative Importance of Subcontractor Selection Criteria: Evidence from Singapore. Journal of Construction Engineering and Management, 135(09), 826–32.
Kiziltas, S and Akinci, B (2009) Contextual Information Requirements of Cost Estimators from Past Construction Projects. Journal of Construction Engineering and Management, 135(09), 841–52.
- Type: Journal Article
- Keywords: Databases; Data collection; Costs; Decision support systems; Information systems; Construction management;
- ISBN/ISSN: 0733-9364
- URL: https://doi.org/10.1061/(ASCE)CO.1943-7862.0000053
- Abstract:
Past project data sources provide key information for construction cost estimators. Previous research studies show that relying only on one’s own experience during estimation results in estimators’ bias. Having and referring to historical databases, containing objective information on what happened in past projects, are essential for reducing estimators’ biases. The first step toward development of useful project history databases is to understand what information estimators require from past projects. The research described in this paper targets estimators’ information needs identified through interviews, brainstorming sessions, task analyses, and card games conducted with estimators with different experience levels and specialized in heavy/civil and commercial construction projects, and exploration of historical and standard databases available in companies to determine what is being currently represented. Findings show that estimators need contextual information, depicting the conditions under which specific production rates were achieved, so that they can identify which production rate would be more realistic to use during the production rate estimation of an activity in a new bid. Comparison of the contextual information needs identified in this research with information items available in historical data sources (such as company cost reports, RSMeans, previous studies) highlighted some gaps and important opportunities for improvements in those sources. The identified contextual information items are significant for practitioners in developing ways to augment their existing project history databases to make them more beneficial for estimators.
Le, T, Caldas, C H, Gibson, G E and Thole, M (2009) Assessing Scope and Managing Risk in the Highway Project Development Process. Journal of Construction Engineering and Management, 135(09), 900–10.
Lu, M and Lam, H (2009) Transform Schemes Applied on Non-Finish-to-Start Logical Relationships in Project Network Diagrams. Journal of Construction Engineering and Management, 135(09), 863–73.
Minchin, R E (2009) Fall and Rise of the Largest Construction Manager-at-Risk Transportation Construction Project Ever. Journal of Construction Engineering and Management, 135(09), 930–8.
Mitropoulos, P, Cupido, G and Namboodiri, M (2009) Cognitive Approach to Construction Safety: Task Demand-Capability Model. Journal of Construction Engineering and Management, 135(09), 881–9.
Odeh, I, El-Rayes, K and Liu, L (2009) Field Experiments to Evaluate and Control Light Tower Glare in Nighttime Work Zones. Journal of Construction Engineering and Management, 135(09), 911–9.
Poveda, C A and Fayek, A R (2009) Predicting and Evaluating Construction Trades Foremen Performance: Fuzzy Logic Approach. Journal of Construction Engineering and Management, 135(09), 920–9.