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Traffic Load Spectra Development for the 2002 AASHTO Design Guide.
| 题名： | Traffic Load Spectra Development for the 2002 AASHTO Design Guide. |
| 作者： | BUCHANAN, M. S. |
| 关键词： | LOAD BEARING CAPACITY; LOADS(FORCE); PAVEMENTS; STRUCTURAL DESIGN; TRAFFIC MANAGEMENT |
| 摘要： | Accurate knowledge of traffic volumes and loading is essential to structural pavement design and performance. Underestimation of design traffic can result in premature pavement failures and excessive rehabilitation costs. Overestimation can result in overly conservative pavement designs that are not cost effective for the owner agency. Traffic input for the anticipated National Cooperative Highway Research Program (NCHRP) 1-37A Design Guide will be in terms of axle load spectra along with several other important traffic parameters. Axle load spectra consists of classifying traffic loading in terms of the number of load applications of various axles configurations (single, dual, and tridem) within a given weight classification range. Long term pavement performance (LTPP) data from Mississippi sites were extensively reviewed to determine vehicle class distribution, monthly and hourly distribution factors, and axle load spectra. |
| 报告类型： | 科技报告 |
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