Evaluating All-Weather Pavement Markings in Illinois: Volume 2

Hawkins, Neal R.; Smadi, Omar; Knickerbocker, Skylar

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https://hdl.handle.net/2142/104205 Copy

Description

Title

Evaluating All-Weather Pavement Markings in Illinois: Volume 2

Author(s)

• Hawkins, Neal R.
• Smadi, Omar
• Knickerbocker, Skylar

Issue Date

2019-06

Keyword(s)

• all-weather pavement-marking tape
• wet retroflectivity
• field evaluation
• continuous wetted
• recovery
• presence
• pavement marking
• pavement-marking performance

Abstract

The project evaluated two pre-manufactured pavement marking tapes (380AW and XRP-R) over three winter seasons at two different Illinois DOT locations (central and southern Illinois). The two products were installed on I-80 within a recessed groove in contrast to IL-3 where they were rolled in with the last pass of the asphalt finishing machine. Retroreflectivity was measured under three standard conditions including dry, wet-recovery, and continuously wetted. The 380AW tape measured 148 mcd under continuously wetted conditions after 3 winters on I-80 and overall measured significantly higher than the XRP-R tape under the two wet conditions (recovery and continuously wetted). The XRP-R tape performed well under dry conditions; however, wet-recovery retroreflectivity was below 100 mcd (after initial conditions) and continuously wetted retroreflectivity did not exceed 100 mcd. Short of a minimum retroreflectivity threshold for wet conditions, these findings will support IDOT decision making in terms of product selection where trying to enhance safety through providing higher levels of wet night visibility. The findings also highlig

Publisher

Illinois Center for Transportation/Illinois Department of Transportation

Series/Report Name or Number

FHWA-ICT-19-007

ISSN

0197-9191

Type of Resource

text

Language

en

Permalink

http://hdl.handle.net/2142/104205

Sponsor(s)/Grant Number(s)

IDOT-R27-120

Copyright and License Information

No restrictions. This document is available through the National Technical Information Service, Springfield, VA 22161.

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