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Title:

Investigating Driver Yielding Behavior at Roundabout Approaches

Accession Number:

01658985

Record Type:

Component

Abstract:

Past roundabout research in Wisconsin found pavement markings have an effect on the expected number of rear-end collisions at roundabout approaches. In order to further investigate the effects of pavement markings on yielding, a survey was conducted. In total, 463 participants completed the survey. Participants were asked to indicate where they would yield, given eight different pavement marking configurations in a dynamic portion of the survey. Statistical comparisons show that the distributions of yielding locations differ statistically significantly, clearly illustrating the impact pavement markings have on drivers’ understanding of where to yield on the approach to a roundabout. When “shark teeth” pavement marking were present participants yielded approximately five feet further upstream than scenarios without. The word “YIELD” provided the largest variance in yielding locations. When a pedestrian crosswalk was present, participants chose to yield at the pedestrian crosswalk between 38% and nearly 50% of the time, despite no information being presented regarding the presence of pedestrians. Emphasis should be placed in drivers’ education programs to inform drivers they need not yield at pedestrian crosswalks unless pedestrians are present. Further, the results suggest drivers yield in different locations depending on different pavement marking configurations at roundabout approaches, which may influence the number of rear-end collisions. Uniformity in pavement markings at roundabout approaches, at least on a statewide level, may alleviate driver confusion. Further work will attempt to validate the results with field data and a full-scale driving simulator study.

Supplemental Notes:

This paper was sponsored by TRB committee ANB75 Standing Committee on Roundabouts.

Report/Paper Numbers:

18-02764

Language:

English

Authors:

Burdett, Beau
Alsghan, Ibrahim
Chitturi, Madhav V
Bill, Andrea R
Noyce, David A

Pagination:

12p

Publication Date:

2018

Conference:

Transportation Research Board 97th Annual Meeting

Location: Washington DC, United States
Date: 2018-1-7 to 2018-1-11
Sponsors: Transportation Research Board

Media Type:

Digital/other

Features:

Figures; References (18) ; Tables

Geographic Terms:

Wisconsin

Subject Areas:

Highways; Safety and Human Factors

Source Data:

Transportation Research Board Annual Meeting 2018 Paper #18-02764

Files:

TRIS, TRB, ATRI

Created Date:

Jan 8 2018 10:40AM