Leandro, R; O'Connor, J T and Khwaja, N (2018) Development and application of a production-rate resource for contract time determination. Journal of Construction Engineering and Management, 144(12): 06018005, ISSN 0733-9364
Abstract
Work item production rates are essential for contract time determination (CTD) procedures as they are used to estimate the duration of activities needed to complete a highway construction project. For this reason, varied sources and estimation systems provide production-rate data for a variety of work items. Yet these data sources are disjointed and do not provide for any side-by-side comparison of data. This research focuses on the development of an integrated Production Rate Resource, a single, easy-to-use reference of production-rate data gathered from publicly available sources. The resource was developed by gathering production-rate information from multiple sources and organizing the found data into a well-assembled Excel workbook. A proposed process for conducting CTD using the resource is included. The gathered information was tested by estimating the contract time of highway projects using the recommended process. Findings from the application led to significant improvements to the resource. The final version of the Production Rate Resource provides integrated production-rate data for 59 highway construction work items and a recommended process for conducting contract time estimation.
| Item Type: | Article |
|---|---|
| Index terms: | duration, highway construction, estimate, time estimation, estimating, estimation |
| Subjects: | project controls, operations research, civil engineering, financial and cost management |
| Topics: | Cost Management, Engineering Principles, Time Control |
| Descriptive scope: | 2 PC |
N.B. Descriptive scope is a count of how many of the five facets of empirical research are indicated by the words used in title, abstract and keywords. It is not intended as a judgement on the research; merely a count of the kind of word we would expect to indicate Phenomenon, Concepts, Theoretical framing, Empirical techniques, Analytical techniques. If all five are present, then a code of “5 PCTEA” will indicate this. If you feel the coding for this record is questionable, we welcome discussion around the terms we matched or the way we categorized them. The facet you would expect may not be coded, or a facet may be coded inappropriately. This can also bear on a larger question, of which facets should be treated as defining in construction management research. Please get in touch, and we will look at it. More details here