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Title	COMPARISON OF DIAMOND INTERCHANGES WITH ROUNDABOUT INTERCHANGES
Accession No	00794809
Authors	Bared, J G; Kaisar, E I
Conference Title	2nd International Symposium on Highway Geometric Design
Corp. Authors / Publisher	Road and Transportation Research Association
Editors	Krammes, R; Brilon, W
Publication Date	20000600
Description	p. 513-521; Figures(8); References; Tables(1)
Languages	English
Abstract	The safety and traffic operations of diamond interchanges could be improved by replacing the stop or signal controlled intersections with well-designed roundabouts for low and moderate traffic volumes. Three case problems and several scenarios are applied to compare control delay between a diamond interchange and an interchange with double, and single roundabouts. The selected scenarios were compared using models for roundabout traffic operations and for signalized intersections. Based on the modeling efforts of the given cases, roundabout interchanges provide noticeable reductions in control delay. Yearly reductions in delay are economically advantageous in addition to substantial savings in bridge construction cost.
Supplemental Information	The publisher's German name is Forschungsgesellschaft fur Strassen- und Verkehrswesen (FGSV).
TRT Terms	Case studies ; Cost effectiveness ; Diamond interchanges ; Economic benefits ; Forecasting ; Intersections ; Roundabouts ; Signalized intersections ; Traffic delay
Other Terms	Comparison
Subject Areas	H21 FACILITIES DESIGN; I21 Planning of Transport Infrastructure
Report Number	FGSV 002/67
Availability	Road and Transportation Research Association
TRIS Files	HRIS
Database	TRIS Online