Roundabout operations : a summary of FHWA's - 'Roundabouts: An Informational Guide'

dc.contributor.authorKrogscheepers, Christoff
dc.contributor.authorRobinson, Bruce
dc.contributor.authorRodegerdts, Lee
dc.contributor.otherSouthern African Transport Conference (20th : 2001 : Pretoria, South Africa)
dc.date.accessioned2008-11-14T07:38:07Z
dc.date.available2008-11-14T07:38:07Z
dc.date.issued2001-07
dc.descriptionThis paper was transferred from the original CD ROM created for this conference. The material on the CD ROM was published using Adobe Acrobat technology. The original CD ROM was produced by Document Transformation Technologies Postal Address: PO Box 560 Irene 0062 South Africa. Tel.: +27 12 667 2074 Fax: +27 12 667 2766 E-mail: doctech@doctech.co.za URL: http://www.doctech.co.zaen_US
dc.description.abstractPaper presented at the 20th Annual South African Transport Conference 16 - 20 July 2001 "Meeting the transport challenges in Southern Africa", CSIR International Convention Centre, Pretoria, South Africa. ABSTRACT: As in many other countries, roundabouts are receiving renewed interest in South Africa.The Federal Highway Administration (FHWA)publication, 'Roundabouts: An Informational Guide', presents a comprehensive discussion of roundabout planning, performance analysis, and design. No specific local guidelines for roundabouts have been developed and local engineers rely mostly on English and Australian methods. This guide provides another useful tool for the traffic engineering toolbox. One of its features is the definition of six categories of roundabouts, ranging from small, urban mini-roundabouts to relatively large, rural double-lane roundabouts. Distinctions have been made between the various categories in terms of characteristics, planning procedures, operational analysis, and design treatments. This paper presents the various elements of operational analysis included in the guide, including measures of capacity and performance analysis,and provides a discussion of many of the decisions made during the development of the guide. The paper presents capacity curves for urban compact roundabouts, single-lane roundabouts, and double-lane roundabouts, as well as adjustment factors to account for the effect of short lanes (flaring). The paper also presents the methodologies and recommended practices for determining degree of saturation, delay, and queuing.en_US
dc.identifier.citationKrogscheepers, C, Robinson, B & Rodegerdts, L 2001, 'Roundabout operations : a summary of FHWA's - 'Roundabouts: An Informational Guide',' Paper presented to the 20th Annual South African Transport Conference, South Africa, 16 - 20 July.en_US
dc.identifier.isbn0620277653
dc.identifier.urihttp://hdl.handle.net/2263/7929
dc.languageeng
dc.language.isoenen_US
dc.publisherSATCen_US
dc.relation.ispartofSATC 2001
dc.rightsUniversity of Pretoriaen_US
dc.subjectRoundabout planningen_US
dc.subjectTraffic engineeringen_US
dc.subject.lcshTransportation -- South Africa -- Congressesen
dc.subject.lcshTraffic circles -- South Africa -- Planningen
dc.subject.lcshTraffic circles -- South Africa -- Congressesen
dc.titleRoundabout operations : a summary of FHWA's - 'Roundabouts: An Informational Guide'en_US
dc.typePresentationen_US

Files

Original bundle

Now showing 1 - 1 of 1
Loading...
Thumbnail Image
Name:
1c8.pdf
Size:
400.43 KB
Format:
Adobe Portable Document Format
Description:
Krogscheepers_Roundabout(2001)

License bundle

Now showing 1 - 1 of 1
Loading...
Thumbnail Image
Name:
license.txt
Size:
2.4 KB
Format:
Item-specific license agreed upon to submission
Description: