Evaluation of On-ramp Control Algorithms

Wenlong Jin and Michael Zhang

Institute of Transportation Studies, Research Reports, Working Papers, Proceedings from Institute of Transportation Studies, UC Berkeley

Abstract: A freeway corridor consists of the freeway and its entrance/exit ramps, the cross streets, and adjacent parallel arterial streets. It is designed to provide a generally high level of service (LOS) to their users and to the communities which they serve. However, many corridors in the country are congested, with the worst congestion problems usually arising during the two peak periods(morning and evening) (Schrank and Lomax, 1999). =There are two types of traffic congestion observed: recurrent and non-recurrent. Recurrent congestion are due to excessive peak demands and non-recurrent congestion are due to capacity reduction caused by events such as accidents. The control of a traffic corridor, which consists of two major components freeway system control and arterial street system control, is aimed at improving flows on both freeway and arterial streets, and has been demonstrated as an effective mean to increase the level of service of a corridor system during peak periods. Ramp metering, or on-ramp control, which is designed to determine a metering rate for each controlled on-ramp based on traffic conditions of part or whole of the corridor, has been considered a very important component of corridor traffic control.

Keywords: Engineering; Express highways--Interchanges and intersections; Express highways--United States--Management; Traffic flow--United States; Electronic traffic controls; Ramp metering; Advanced traffic management systems (search for similar items in EconPapers)
Date: 2001-04-01
References: View complete reference list from CitEc
Citations: View citations in EconPapers (5)

Downloads: (external link)
https://www.escholarship.org/uc/item/1gz7w0wm.pdf;origin=repeccitec (application/pdf)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:cdl:itsrrp:qt1gz7w0wm

Access Statistics for this paper

More papers in Institute of Transportation Studies, Research Reports, Working Papers, Proceedings from Institute of Transportation Studies, UC Berkeley Contact information at EDIRC.
Bibliographic data for series maintained by Lisa Schiff ().