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Conceptual Plan for Closer Integration of Network- and Project-Level Pavement Management; Research rept. 1997.8-Jan 99
| 题名： | Conceptual Plan for Closer Integration of Network- and Project-Level Pavement Management; Research rept. 1997.8-Jan 99 |
| 作者： | Pilson, C. C.; McCullough, B. F.; Smith, R. |
| 关键词： | Pavements; Maintenance; Texas; Mathematical models; Texas; Predictions; Feasibility; Network analysis(Management); Flexible pavements; Concrete pavements; Information systems |
| 摘要： | This report presents an evaluation of current performance modeling concepts and a feasibility study of the possibility of integrating network- and project-level performance prediction. The widely differing modeling methods in use today are reviewed and the design and management systems in use in Texas are briefly discussed. Performance prediction is shown to be needed in at least four stages of planning and management, including the planning (or before-design) stage, the design stage, the construction stage, and then for the existing pavement after a number of years in service. A proposed method for the incorporation of project-level performance models into the PMIS and the possible use of PMIS condition data to improve performance models through regression are outlined based on the conclusion that project-level design and network-level planning should be two different pathways within the same system. It is proposed that all performance curves, from whatever source, be converted to sigmoidal coefficients, and that these be stored separately for each individual PMIS pavement section. It is then proposed that the mechanistic rigid pavement analysis system CRCP8 be incorporated as a test case for the prediction of rigid pavement distresses. It is proposed that one or more flexible pavement models be sought along similar lines. While the ideas presented in this interim report are necessarily conceptual and are presented for the purpose of generating discussion, the plan presented is a coherent whole and represents a general vision for the future of pavement management and design in Texas. |
| 总页数： | 168p |
| 报告类型： | 科技报告 |
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