NTL Record

Title Potential Impact of Exempt Vehicles on HOV Lanes
Record ID 67740
Personal Name
Creator
Turnbull, Katherine F.
Personal Name
Contributor
DeCorla-Souza, Patrick; Jacobs, Angela F.
Corporate Creator United States. Department of Transportation. Federal Highway Administration. Office of Transportation Policy Studies
Corporate
Contributor
United States. Federal Highway Administration; Texas A&M Transportation Institute; Battelle
Publisher United States. Federal Highway Administration
Publication Date 20050801
Language English
Abstract This report explores the use of high-occupancy vehicle (HOV) lanes by exempt vehicles, including Inherently Low-Emission Vehicles (ILEV), environmentally friendly vehicles, law enforcement and emergency vehicles, and designated public transportation vehicles. Potential issues and approaches for allowing these types of exempt vehicles to use HOV lanes are examined. This information could be of use to state departments of transportation and other agencies in considering possible HOV exemption policies, and in monitoring and evaluating the use of HOV lanes by exempt vehicles. As authorized in recent federal legislation, at least 10 states have approved legislation allowing ILEVs to use HOV lanes without meeting the minimum occupancy requirement. Additional legislation in five states includes hybrid vehicles in the HOV lane exemption, if allowed by federal laws or federal agency regulations. Contrary to federal law, Virginia already allows hybrid vehicles to use HOV lanes in the state. The available information examined in this report indicates that the use of HOV lanes by ILEVs is low. However, based on monitoring hybrid vehicle use of the HOV lanes in northern Virginia there is evidence that hybrids are contributing to congestion problems on some facilities. Clearly marked law enforcement and emergency services vehicles, equipped with rooftop emergency lights and sirens, and designated public transportation vehicles are allowed to use most HOV facilities. There does not appear to be any major issues with the use of HOV lanes by these types of vehicle. However, there do appear to be issues in some areas with the unauthorized use of HOV lanes by law enforcement and emergency services personnel traveling in their personal vehicles or in unmarked agency vehicles while not on duty.
Rosap ID dot:42514
Rosap URL https://rosap.ntl.bts.gov/view/dot/42514
TRT Terms High occupancy vehicle lanes; Zero emission vehicles; Hybrid vehicles; Electric vehicles
Geographical
Coverage
United States
TRIS Online
Accession No
1721061
Contract Number DTFH61-01-C-00182
Report Number FHWA-HOP-05-058
Resource type Tech Report
URL https://ntlrepository.blob.core.windows.net/lib/67000/67700/67740/FHWA-HOP-05-058.pdf
Format PDF
Database NTL Digital Repository