01373106

Monograph

http://www.trb.org/Main/Blurbs/167371.aspx

http://onlinepubs.trb.org.../NCHRP146_Final_Report.pdf

This Innovations Deserving Exploratory Analysis (IDEA) project developed and demonstrated the use of a prototype mobile unit for rapid and reliable measurement of marked pavement reflectivity. This final report describes the design, building, and testing of this prototype, referred to as the Leetron Mobile Retro-reflectometer Unit (MRU). The Leetron MRU invention provides an innovative method of tracking measurements in real time that mitigates the effects of road vibration and surface roughness. A laser is aimed at the center of the pavement marking and a feedback loop is used to readjust the aim point as the vehicle travels at highway speeds.

This NCHRP-IDEA investigation was conducted by Leetron Vision, Concord, New Hampshire. Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved

Highway IDEA Project 146

English

19p

2011-7

NCHRP-IDEA Program Project Final Report

Final Report

Print

Appendices; Figures; Photos; Tables

Measuring instruments; Prototype tests; Prototypes; Retroreflectivity; Road markings; Technological innovations

Innovations Deserving Exploratory Analysis (IDEA) (Program)

Highways; Maintenance and Preservation; Operations and Traffic Management; I60: Maintenance; I73: Traffic Control

TRIS, TRB

Jun 18 2012 2:09PM