Wilde, W J (1998) Life cycle cost analysis of portland cement concrete pavements. PhD thesis, University of Texas at Austin, USA.
Abstract
This report describes the development of a new life cycle cost analysis methodology for portland cement concrete pavements which considers all aspects of pavement design, construction, maintenance and user impacts throughout the analysis period. It predicts pavement performance using state of the art performance models and reliability concepts, from which it determines maintenance and rehabilitation needs. Any construction performed on the roadway has associated construction and user costs. Also associated with all highway pavement construction are external costs, upon which it is difficult if not impossible to place a value. This methodology models the effects of construction on all these aspects and, where the effects cannot yet be quantified, allows new models to be added. Reliability concepts are used with individual models when possible, and the overall variability of the total life cycle cost is estimated. Using reliability concepts and the variability in all aspects of construction and cost models, the design engineer can define a level of confidence for predicting total life cycle costs, user costs, accidents, and other output parameters considered in the methodology. The modular nature of the methodology allows it to be updated with new or better performing models for predicting pavement performance, user costs, and external costs associated with highway pavement construction. New pavement types such as asphalt concrete and prestressed concrete can also be added to the analysis in the future, using proper performance models and maintenance and rehabilitation strategies. Many existing life cycle cost methodologies utilize preprogrammed maintenance and rehabilitation actions to determine the total life cycle cost of a particular alternative. This new methodology, however, determines when maintenance and rehabilitation activities will be required by predicting the distresses and the condition of the pavement due to traffic and environmental loading.
| Item Type: | Thesis (Doctoral) |
|---|---|
| Thesis advisor: | McCullough, B F |
| Uncontrolled Keywords: | reliability; highway; traffic; life cycle; pavement design; rehabilitation; cost analysis; pavement; life cycle cost |
| Index terms: | loading, variability, engineer, life cycle, pavement construction, life cycle cost analysis, distress, methodology, cost model, state of the art, strategy, life cycle cost, cost analysis, pavement design |
| Subjects: | value management, profession, research dissemination and communication, construction operations, financial and cost management, infrastructure engineering, structural engineering, management, economics, research methods, statistical analysis, transportation engineering |
| Topics: | Research Practice, Project Management, Engineering Principles, Business Strategy, Cost Management, Roles and Professions, Site Management |
| Descriptive scope: | 4 PCTA |
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