Details:

Alternative Title:
LTRC Project 02-2GT continuation : phase II
Creators:
Martinez, Mark
Corporate Creators:
Louisiana Transportation Research Center
Corporate Contributors:
Louisiana. Dept. of Transportation and Development ; Louisiana State University (Baton Rouge, La.)
Louisiana. Dept. of Transportation and Development ; Louisiana State University (Baton Rouge, La.) Less -
Subject/TRT Terms:
[+]
Bridge Approaches Surface Roughness--Research Bridge Members Bridges Pavement Layers Surface Course (Pavements)
Publication/ Report Number:
11-3P
Resource Type:
Tech Report
Geographical Coverage:
Louisiana
OCLC Number:
759109322
Edition:
Research project capsule.
Corporate Publisher:
Louisiana Transportation Research Center
NTL Classification:
NTL-HIGHWAY/ROAD TRANSPORTATION-Bridges and StructuresNTL-HIGHWAY/ROAD TRANSPORTATION-Pavement Management and PerformanceNTL-HIGHWAY/ROAD TRANSPORTATION-MaterialsNTL-HIGHWAY/ROAD TRANSPORTATION-Construction and Maintenance
Abstract:
The Localized Roughness Index (LRI) is a parameter that was developed at the Louisiana

Transportation Research Center (LTRC) to quantify localized pavement distresses, such as

pavement surface dips and bumps, concrete slab joint faulting, bridge-end bumps, potholes

and so forth (since there is currently no confi rmed method available that does this). LRI

quantifi es localized pavement distresses with respect to the ride comfort of drivers by

examining vehicular response through accelerometer outputs that high-speed profi lers

provide. However, this approach has signifi cant shortcomings that relate to transportability

issues. It has not yet been determined if the vehicular-response-based LRI can be made

repeatable from vehicle to vehicle (diff ering suspension systems produce diff ering rides over

the same profi le and therefore diff ering LRI indexes). Transportability has been recognized

as a major challenge for a number of decades, and it is widely known that it would be

exceedingly diffi cult to cost-eff ectively address the issue with current technology.


Format:
PDF
Funding:
02-2GT
Collection(s):
US Transportation Collection
Main Document Checksum:
[+]
urn:sha256:3fb94e25cf3b69c7be711e8e38d6779cb27812f731b1c3176080d664624f9f47
Download URL:
https://rosap.ntl.bts.gov/view/dot/23330/dot_23330_DS1.pdf
File Type:

Supporting Files

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