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Title:

An Observational Study of Pedestrian and Bicycle Crossing Experience in Two Modern Urban Roundabouts

Accession Number:

01365428

Record Type:

Component

Abstract:

Many cities in the United States are installing roundabouts, instead of traditional intersections, due to evidence that roundabouts dramatically reduce fatal and severe injury crashes compared to traditional signalized intersections. However, the impact on pedestrian safety is not clear. This project was developed to investigate pedestrian accessibility in Minnesota urban roundabouts, addressing complaints from pedestrians regarding difficulties in crossing and safety. The methodology followed in this ongoing research is typical of other observational studies. A sufficiently large number of observations on the interactions between pedestrians or bicycles (peds/bikes) and vehicles at two modern urban roundabouts in the Twin Cities of Minneapolis and St. Paul in Minnesota were collected and reduced. These observations so far have supported a two phased analysis. Phase one involved the extraction of general information describing the crossing event, such as who yielded, the location of the crossing, or the number of subjects involved. Phase two looked deeper into these factors by considering the conditions inside the roundabout before the vehicle proceeds to the crossing and meets with the ped/bike. The results presented, although containing no surprises, do highlight and categorize the existence of friction between pedestrians and drivers at roundabout crossings. Also the identification of factors affecting driver yield behavior and pedestrian wait time do offer good background for modeling such interactions.

Monograph Accession #:

01362476

Report/Paper Numbers:

12-4284

Language:

English

Corporate Authors:

Transportation Research Board

500 Fifth Street, NW
Washington, DC 20001 United States

Authors:

Hourdos, John
Shauer, Melissa
Davis, Gary A

Pagination:

14p

Publication Date:

2012

Conference:

Transportation Research Board 91st Annual Meeting

Location: Washington DC, United States
Date: 2012-1-22 to 2012-1-26
Sponsors: Transportation Research Board

Media Type:

Digital/other

Features:

Figures; References; Tables

Uncontrolled Terms:

Bicycle safety

Geographic Terms:

Minnesota

Subject Areas:

Highways; Operations and Traffic Management; Pedestrians and Bicyclists; Safety and Human Factors; I73: Traffic Control; I82: Accidents and Transport Infrastructure

Source Data:

Transportation Research Board Annual Meeting 2012 Paper #12-4284

Files:

TRIS, TRB

Created Date:

Feb 8 2012 5:23PM