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原文传递 LTPP MAINTENANCE AND REHABILITATION DATA REVIEW -- FINAL REPORT.

题名：	LTPP MAINTENANCE AND REHABILITATION DATA REVIEW -- FINAL REPORT.
作者：	Eltahan-Ahmad-A; Von-Quintus-Harold-L
关键词：	Condition-surveys; Data-collection; Highway-maintenance; International-Roughness-Index; Long-Term-Pavement-Performance-Program; Missing-data; Patching-; Pavement-distress; Rehabilitation-Maintenance; Tables-Data; Test-sections
摘要：	Since its inception, the Long Term Pavement Performance (LTPP) program has collected maintenance and rehabilitation (M&R) data on all of the test sections included in the LTPP program. To date, there has been no detailed review of the M&R data elements. This report provides a detailed review of the M&R data and presents the findings from that review. A total of 757 test sections have undergone some type of M&R activity. Of these test sections, only 23 anomalies were found. These anomalies consist primarily of sections that have patching recorded in the M&R tables, but no increase in patching area or number in the distress surveys. All of the M&R data tables for these 757 test sections were reviewed for data completeness. For most of these test sections, several fields are missing in almost all of the tables. A detailed list of the missing data fields is included as an appendix to the report. Although it might be difficult to obtain these data for the older M&R activities, an attempt should be made to collect the essential data elements, as a minimum. The distress monitoring data and International Roughness Index (IRI) values were reviewed for those test sections without any known M&R activity. The number of these test sections exceeded 1800. A review of the data from these test sections was completed to identify those sections that may have had some type of M&R treatment, but for which no treatment is recorded in the LTPP database. A total of 275 anomalies of this type was identified. Over 80% of these anomalies were found to be the result of an increase in patching from the distress surveys in the absence of any patching record in the M&R tables.
总页数：	2001/02. 9907-0004 pp157 (27 Fig., 26 Tab., 2 Ref., 9 App.)
报告类型：	科技报告