Pedestrian User Experience at Roundabouts

Godavarthy, Ranjit; Russell, Eugene; Sharma, Kshitij; Saha, Niloy; Molina, Antonio; Ezekwem, Kenechukwu · 2022 · ROSA P / Minnesota. Dept. of Transportation. Office of Policy Analysis, Research & Innovation

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Summary

This study investigates pedestrian user experience at roundabouts in Minnesota, addressing stakeholder concerns that these intersections, particularly multi-lane configurations, can be difficult for pedestrians to navigate. While roundabouts generally reduce vehicle crashes, the research aims to quantify specific challenges related to driver-yielding behavior, infrastructure design, and pedestrian interactions. The study seeks to identify effective crossing treatments and develop guidance for city and county engineers to enhance safety and usability for all pedestrians, including those with vision disabilities. The methodology involved a multi-stage process beginning with a survey of Minnesota city and county engineers and a Technical Advisory Panel to identify roundabouts with known pedestrian issues or specialized crossing treatments. Fifteen roundabouts were shortlisted for field observations, encompassing various configurations (single-lane and multi-lane) and treatments such as rectangular rapid flashing beacons (RRFBs), in-roadway signs, and colored crosswalks. Cameras were installed at each location to record approximately 50 continuous hours of video per leg. From this dataset, eight locations were selected for in-depth case studies. Researchers analyzed daytime video footage (7 am to 8 pm) to measure driver-yielding rates, categorizing behaviors as active yield, passive yield, or no yield, while also assessing pedestrian behavior and infrastructure characteristics. The findings indicate that single-lane roundabouts generally achieved higher driver-yielding rates than multi-lane roundabouts. For instance, a base-case single-lane roundabout in Shakopee showed an 86.1% yielding rate, while a single-lane roundabout with RRFBs in Edina achieved 100% compliance when pedestrians activated the beacons. In contrast, yielding rates decreased at multi-lane roundabouts, particularly at exit lanes compared to entry lanes. Higher vehicle approach speeds were correlated with lower yielding rates. The use of RRFBs significantly enhanced driver compliance by improving pedestrian visibility, while in-roadway signs yielded satisfactory results, though effectiveness diminished as the number of lanes increased. The study concludes that geometric design and specific crossing treatments are critical for improving pedestrian experience. Single-lane roundabouts designed for lower speeds are identified as the safest configuration for pedestrians. The authors developed a guidance document recommending design elements such as minimizing travel lanes, ensuring adequate sight distance, setting back sidewalks, and utilizing splitter islands. For existing multi-lane roundabouts with safety concerns, the installation of RRFBs is recommended as a low-cost strategy to enhance visibility and driver yielding. These findings provide actionable recommendations for transportation agencies to balance vehicular efficiency with pedestrian safety and accessibility.

Key finding

Single-lane roundabouts demonstrated superior driver-yielding rates compared to multi-lane roundabouts, and the use of rectangular rapid flashing beacons significantly improved pedestrian crossing compliance.

Methodology

field_study

Sample size: 8

Provenance

The full processing record for this entry. Every stage of this paper's journey through the pipeline is logged — what ran, with which tool and model, how many attempts it took, and when it last completed. Discovered via bulk_ingest_rosap on 2026-05-23 (6 acquisition events logged).

Summary generated by qwen3.6-27b-prismaquant on 2026-06-10; verification: verified.

Topics

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• intersection design
• pedestrian behavior perception
• driver vru interaction