Quantification of the physical properties required of raised pavement markers and accelerated laboratory testing.

Lu, Qing; Gunaratne, Manjriker; Zhang, Yunlong; Guo, Lukai; Yu, Bin; University of South Florida. Dept. of Civil and Environmental Engineering

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ROSA P serves as an archival repository of USDOT-published products including scientific findings, journal articles, guidelines, recommendations, or other information authored or co-authored by USDOT or funded partners. As a repository, ROSA P retains documents in their original published format to ensure public access to scientific information.

i

Quantification of the physical properties required of raised pavement markers and accelerated laboratory testing.

2014-04-01
By Lu, Qing ; Gunaratne, Manjriker ; Zhang, Yunlong ; ...

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English

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Creators:

Lu, Qing ; Gunaratne, Manjriker ; Zhang, Yunlong ; Guo, Lukai ; Yu, Bin

Lu, Qing ; Gunaratne, Manjriker ; Zhang, Yunlong ; Guo, Lukai ; Yu, Bin Less -
Corporate Creators:

University of South Florida. Dept. of Civil and Environmental Engineering
Subject/TRT Terms:

[+]

Finite Element Method Laboratory Tests Performance Tests Physical Properties Raised Road Markings Retroreflectors Service Life Strain Measurement
Publication/ Report Number:

BDK84-977-23
Resource Type:

Tech Report
Geographical Coverage:

Florida
Corporate Publisher:

Florida. Dept. of Transportation
Abstract:

Retroreflective raised pavement markers (RRPMs) can provide lane and directional information at

night, particularly during wet weather conditions. In recent years, the RRPM service life in Florida has

been generally shorter than expected. Moreover, the accuracy of current RRPM laboratory testing

methods and procedures have been challenged.

This report presents the research conducted over a two-year period to improve current RRPM designs

and to develop new laboratory tests that can predict marker field performance. Current RRPM

performance with typical failure modes and contributing factors were identified through literature

review, nationwide questionnaire survey, and field survey. Finite element models (FEMs) of the

tire/RRPM/pavement system were built to analyze the critical stress fields in RRPMs, for both field use

scenarios and laboratory testing conditions, to explore the effects of various geometric features and

material properties on critical stresses, and therefore to propose improved RRPM designs and laboratory

test procedures. Strains in field RRPMs were measured with strain gauges to verify FEM results. Two

new laboratory tests that better simulate field loading conditions were proposed, and a revised

pendulum impact test was developed. New RRPM designs that may have an average service life longer

than that of current RRPMs were recommended.
Format:

PDF
Collection(s):

US Transportation Collection
Main Document Checksum:

[+]

urn:sha256:b678fa8f28f2b99f83932eaa6afd2e888f029478591821396e9c3a58c9377d03
Download URL:

https://rosap.ntl.bts.gov/view/dot/27313/dot_27313_DS1.pdf
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Quantification of the physical properties required of raised pavement markers and accelerated laboratory testing.

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