Monitoring of High-Occupancy VehicleLanes in Districts 3 & 4

Ellen Robinson and J.D. Margulici

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

Abstract: California law currently allows certain permitted low‐emission vehicles (i.e., hybrids) to use high‐occupancy vehicle (HOV) lanes regardless of the number of occupants. In September of 2006, the maximum number of permits to be issued was raised from 75,000 to 85,000. The Caltrans analysis after the issuance of 50,000 permits concluded that hybrid vehicles were not causing breakdown on California HOV lanes [1]. However, studies of the effects of hybrid single‐occupancy vehicle use on HOV facilities around the nation indicate that California HOV lanes will become congested eventually, especially if Hybrid vehicle permits continue to be issued after the current cap of 85,000 [2]. Therefore, flow sensors coverage must be adequate to monitor increasing congestion, and assess the wisdom of proposed increases in the permit cap. Moreover, the Federal Highway Administration (FHWA) requires that HOV facilities receiving federal funding allow hybrids only if doing so doesn’t degrade the level of service of those facilities. The purpose of this project was to assess the adequacy of Caltrans’ existing detection infrastructure, and to determine the potential costs associated with any needed improvements.

Keywords: Engineering (search for similar items in EconPapers)
Date: 2008-09-01
References: Add references at CitEc
Citations:

Downloads: (external link)
https://www.escholarship.org/uc/item/3qq0p8bc.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:qt3qq0p8bc

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 ().