In Vehicle Evaluation Of Milled Rumble Strips At Pre And Post Chip Sealed Maintenance Periods

Download or read book In-vehicle Evaluation of Milled Rumble Strips at Pre- and Post-chip Sealed Maintenance Periods written by Ernest Tufuor and published by . This book was released on 2016 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: "The purpose of this report is to conduct a controlled experiment to understand the relationship between milled [rumble strips] RS to understand the relationship between milled RS depth and noise and vibration in the vehicle cab. In-vehicle noise and vibration levels were collected on five different RS depths (i.e., 1/8", 1/4", 3/8", 1/2" and 5/8"), on three RS types (i.e., shoulder, single centerline, and double centerline), on three highways in the state of Nebraska, and using two vehicles traveling at speeds of 45 mph, 55 mph, and 65 mph. RS depths at 1/8" intervals were used to stimulate the influence of a chip-seal on the RS effectiveness. On the basis of the in-vehicle sound and vibration levels of all the tested RS depths, it was shown in this research that 1/8" reduction in the current milled RS design depth, as a result of chip-sealing, does not result in a practical reduction in the RS effectiveness at producing audible and tactile warnings to alert drivers" (page viii).