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- W641997795 abstract "In long-term work zones on multilane highways and/or freeways, the Federal Highway Administration has interpreted the Manual on Uniform Traffic Control Devices (MUTCD) to mean that only one advance warning arrow display can be used to denote the closure of a single lane. Where two or more lanes are closed, a single arrow display is used for each lane to be closed. However, in short-term applications or for moving/mobile work convoys, the MUTCD allows the use of multiple arrow displays to indicate a single lane closure. These disparate uses for arrow displays create the potential for confusion by drivers. This paper describes the results of four focus group interviews with Midwestern drivers. Participants were shown several mock images of shadow work vehicles with arrow displays and were questioned on how well they understood and/or interpreted the message conveyed by arrow displays, depending on the display type and quantity of displays used, and the researchers looked specifically for potential driver confusion. Focus group participants generally considered panel displays that included motion (e.g., sequential arrows and sequential chevrons) as implying a more important situation and preferred their use over flashing versions (flashing arrows and flashing chevrons). While participants were receptive to the use of multiple arrow displays on multiple shadow vehicles, a minority indicated that this conveyed a need to move over more than one lane. Participants also indicated that staggering sequential shadow vehicles from the shoulder into the closed lane provided useful information as to the number and location of the closed lanes." @default.
- W641997795 created "2016-06-24" @default.
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- W641997795 date "2007-01-01" @default.
- W641997795 modified "2023-09-26" @default.
- W641997795 title "Focus Group Participants' Understanding of Advance Warning Arrow Displays Used in Short-Term and Moving Work Zones" @default.
- W641997795 hasPublicationYear "2007" @default.
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