详情

原文传递 IT TAKES MORE THAN MIRRORS TO SEE YOUR "TRUE PROFILE".

题名：	IT TAKES MORE THAN MIRRORS TO SEE YOUR "TRUE PROFILE".
作者：	Sixbey-DG
关键词：	PAVEMENT-TESTS; PAVEMENT-SMOOTHNESS; PAVEMENT-SURFACE-TEXTURE; EVENNESS-; ROAD-SURFACES; MEASURING-INSTRUMENTS; INSTRUMENTS-FOR-MEASURING-ROUGHNESS; RESEARCH-PROJECTS
摘要：	Professor James Wambold and fellow Penn State professor J.J. Henry is heading up an experiment that will compare the results of measurements on road evenness carried out using different equipment and different measurement methods in Arizona, Japan, and The Netherlands/Germany during 1998. As a precursor to this work, researchers from all over the world gathered at the Turner-Fairbank Highway Research Center (TFHRC) in McLean, Virginia, in October 1997 to find the best equipment to measure true profile. TFHRC staff set up a variety of sites for the test day, and each piece of equipment was run through a battery of tests on each type of site to make sure they could cover the full range of what they would be asked to do at their three locations in 1998. Three types of equipment were selected. One is a rod-and-level, which measures large distances of pavement. One rod-and-level measurement is taken every 30 m. The second is a static inclinometer, which measures short distances. It will take a measurement every 0.25 m. Finally, a continuous rolling inclinometer will take continuous measurements as it moves over the pavement. The professors also plan to compare the measurements from these pieces of equipment with measurements obtained from the Road Surface Analyzer (ROSAN), an automated and computerized device that is mounted on a vehicle and does its measuring while the vehicle is moving at normal traffic speeds.
总页数：	Public Roads. 1998/03. 61(5) pp36-39 (7 Phot.)
报告类型：	科技报告