详情

原文传递 LTPP DATA ANALYSIS: FACTORS AFFECTING PAVEMENT SMOOTHNESS.

题名：	LTPP DATA ANALYSIS: FACTORS AFFECTING PAVEMENT SMOOTHNESS.
作者：	Perera-RW; Kohn-SD
关键词：	Databases-; International-roughness-index; Literature-reviews; Long-Term-Pavement-Performance-Program; Pavement-design; Pavement-distress; Pavement-performance; Properties-of-materials; Rehabilitation-Maintenance; Roughness-; Smoothness-; Traffic-volume; Weather-conditions
摘要：	In this research project, data available in the Long Term Pavement Performance (LTPP) Information Management System (IMS) were used to determine the effect of factors such as design and rehabilitation parameters, climatic conditions, traffic levels, material properties, and extent and severity of distress that cause changes in pavement smoothness. For the purposes of this research, the International Roughness Index (IRI) was used as the measure of pavement smoothness. The LTPP program consists of two complementary programs, the General Pavement Studies (GPS) and Specific Pavement Studies (SPS). Chapter 1 of this project report provides an introduction. Chapter 2 presents the review of literature related to factors affecting pavement smoothness and roughness development in pavements. Chapter 3 presents the data elements that were selected for analysis and data synthesis methods that were used with the data obtained from the IMS. Chapter 4 presents the data analysis methods that were utilized during the study. Chapter 5 describes roughness characteristics of new pavements, and describes the results obtained from the SPS-1 and SPS-2 experiments. Chapter 6 describes roughness characteristics of rehabilitated pavements, and describes results obtained from SPS-5 and SPS-6 experiments. Chapter 7 presents the results obtained for GPS experiments in the first design phase, which are GPS experiments 1 through 5. Chapter 8 presents the results obtained for GPS experiments 6 and 7, which are overlaid pavements. Chapter 9 presents the conclusions and recommendations for future research.
总页数：	NCHRP Web Document 40. 2001/08. pp299 (Figs., Tabs., Refs., 5 App.)
报告类型：	科技报告