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Title: Local Ramp Metering in the Presence of a Distant Downstream Bottleneck
Accession Number: 01049513
Record Type: Component
Availability: Transportation Research Board Business Office 500 Fifth Street, NW Abstract: The paper addresses a macroscopic-simulation investigation on the performance of feedback local ramp-metering controller ALINEA and its PI (Proportional-Integral) extension for freeway stretches with a bottleneck at a distant location downstream of the metered on-ramp. The investigation indicates that the ramp metering performance of ALINEA (a simple controller with an Integral term) deteriorates in the distant downstream bottleneck case, while a significant improvement may be obtained by addition of a proportional term and by specification of suitable parameter values of the controller. The selected parameter values of the extended ALINEA regulator of the PI type are demonstrated to be suitable for a range of different bottleneck distances, which indicates that no fine-tuning would be necessary in field applications.
Monograph Title: Monograph Accession #: 01042056
Report/Paper Numbers: 07-1817
Language: English
Corporate Authors: Transportation Research Board 500 Fifth Street, NW Authors: Wang, YibingSchieferstein, AndreaPapageorgiou, MarkosPagination: 28p
Publication Date: 2007
Conference:
Transportation Research Board 86th Annual Meeting
Location:
Washington DC, United States Media Type: CD-ROM
Features: Figures
(10)
; References
(5)
TRT Terms: Uncontrolled Terms: Subject Areas: Administration and Management; Geotechnology; Highways; Operations and Traffic Management; Planning and Forecasting; I72: Traffic and Transport Planning
Source Data: Transportation Research Board Annual Meeting 2007 Paper #07-1817
Files: TRIS, TRB
Created Date: Feb 8 2007 6:31PM
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