State-of-practice for risk-based quality assurance in state departments of transportation
Autor(en): |
Erick Oechler
Keith R. Molenaar Matthew Hallowell Sidney Scott |
---|---|
Medium: | Fachartikel |
Sprache(n): | Englisch |
Veröffentlicht in: | Engineering, Construction and Architectural Management, August 2018, n. 7, v. 25 |
Seite(n): | 958-970 |
DOI: | 10.1108/ecam-06-2016-0143 |
Abstrakt: |
PurposeSelecting an optimal quality assurance (QA) process can have significant implications on the long-term durability and lifecycle costs of transportation projects. Currently, the approaches used by state departments of transportation (DOTs) to optimize QA are undocumented and the impact of project-specific factors are unknown. The paper aims to discuss these issues. Design/methodology/approachState-of-practice was documented via a review of DOT guidance documents, standard specifications and minimum sampling and testing requirements; a survey of 58 state DOT representatives; and interviews with eight DOTs. FindingsDOT approaches to QA management are very diverse but can be organized into five levels that range fromad hocvisual inspection of materials to DOT-managed sampling and testing. Project size, location and complexity have strong influence on the selection of a QA approach, but DOT demographics and project delivery method are less significant. Practical implicationsPresent approaches to the selection of a QA approach are generally informal, subjective and do not involve formal risk analyses. A data-driven approach for transportation projects is clearly needed. Originality/valueUnderstanding how state DOTs approach QA method selection will serve as a foundation for new methods of QA optimization. |
- Über diese
Datenseite - Reference-ID
10576658 - Veröffentlicht am:
26.02.2021 - Geändert am:
26.02.2021