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Title:Investigating the Optimum Performance of Snowplowable Reflective Pavement Markers
Author(s):Dwyer, Carmine E.; Himes, Scott
Subject(s):Roadway Guidance Markers
Snowplowable
Retroreflective
Reflective
Castings
Housings
Lenses
Cast Iron
Plastic
Abstract:This project investigated the installation and performance of snowplowable reflective pavement markers (SRPMs) to determine optimum pavement marker solutions and policies for roadways in Illinois. The research evaluated the performance of five traditional cast-iron and two plastic SRPMs on test sections of both asphalt and concrete pavements. Analysis included 1) comparisons of casting design, casting material, and groove design; 2) assessments on how each factor contributed to pavement marker performance; and 3) development of crash modification factors (CMFs) for quantifying any safety improvement from SRPM use. The results of the SRPM performance evaluation and CMF development were used to provide recommended updates to the Illinois Department of Transportation’s (IDOT’s) departmental policies document TRA-14, which provides guidelines for the use of pavement marking materials (including raised pavement markers) and to IDOT’s Raised Reflective Pavement Marker inspection policy, which gives regional engineers instructions on inspection of in-place SRPMs.
Issue Date:2019-11
Publisher:Illinois Center for Transportation
Illinois Department of Transportation
Citation Info:Dwyer, Carmine E., and Scott Himes. 2019. Investigating the Optimum Performance of Snowplowable Reflective Pavement Markers. A report of the findings of ICT-R27-151. Illinois Center for Transportation Series No. 19-016. Research Report No. FHWA-ICT-19-013. Illinois Center for Transportation, Rantoul, IL. https://doi.org/10.36501/0197-9191/19-016
Series/Report:FHWA-ICT-19-013
Genre:Technical Report
Type:Text
Language:English
URI:http://hdl.handle.net/2142/105516
ISSN:0197-9191
DOI:https://doi.org/10.36501/0197-9191/19-016
Sponsor:IDOT-R27-151
Rights Information:No restrictions. This document is available through the National Technical Information Service, Springfield, VA 22161.
Date Available in IDEALS:2019-11-08


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