Dual-mode bus: Information from Answers.com

This article concerns buses that can operate from two independent fuel sources. For other hybrid technologies, see Hybrid bus or Fuel cell bus

Boston Neoplan AN460LF dual-mode trolleybus, operating in diesel mode (with its trolley poles lowered)

A dual-mode bus is a bus that can run independently on power from two different sources, typically electricity from overhead lines (in a similar way to trolleybuses) or batteries, alternated with conventional fossil fuel (generally diesel fuel).

In contrast to other hybrid buses, dual-mode buses can run forever exclusively on their electric power source (wires). Several of the examples listed below involve the use of dual-mode buses to travel through a tunnel on electric overhead power.

Examples

Dual-mode bus in Rome, operating in trolley mode

This transport-related list is incomplete; you can help by expanding it.

Bergen, Norway features dual-mode buses in the Bergen trolleybus system
Boston, Massachusetts, USA installed dual-mode buses on the Waterfront portion of its Silver Line in 2005. Electric power is required in the exclusive right of way that runs in a tunnel under Fort Point Channel; diesel power is used to run on city streets and highways, including the Ted Williams Tunnel to Logan Airport
A trolleybus line opened in Rome, Italy, in 2005 uses dual-mode vehicles which are powered from overhead trolley wires over most of the 11.5-km route but run on battery power on the 500-meter section closest to the city centre, which for aesthetic reasons was not equipped with wiring.^[1]
Castellón de la Plana, Spain installed a new trolleybus line that went into operation 25 June 2008.^[2]^[3] The Irisbus Civis vehicles are optically guided and are capable of switching to diesel engine power for turning in front of the Parque Ribalta.^[4]^[5]
Seattle, Washington, USA used 235 dual-mode buses in its downtown bus tunnel from 1990 until late 2004, when the fleet of dual-mode buses were retired, except for 59 converted to electric-only service^[6]^[7] and were replaced in the tunnel by hybrid diesel-electric buses. In 2009, Link light rail vehicles also began using the tunnel.

References

^ Webb, Mary (ed.) (2009). Jane's Urban Transport Systems 2009-2010, p. 195. Coulsdon (UK): Jane's Information Group. ISBN 978-0-7106-2903-6.
^ Dave Chick. "Castellon". British Trolleybus Society. http://www.sandtoft.org/bts/Articles/castellon.htm. Retrieved 2009-01-10.
^ "Castellón-de-la-Playa (sic) Trolleybus Photos". http://members.shaw.ca/synt/Castellon-photos.htm. Retrieved 2009-01-10.
^ "A First in Spain: Optiguide for Castellon’s Trolleybus Line". http://www.innovations-report.com/html/reports/logistics/report-113808.html. Retrieved 2009-01-11.
^ "Castellón de la playa notes". http://members.shaw.ca/synt/Castellon-Notes.htm. Retrieved 2009-01-10.
^ "Retired - Breda 5000 dual mode bus". http://metro.kingcounty.gov/am/vehicles/retired/breda.html. Retrieved 2009-12-04.
^ "Breda Articulated Trolley Bus". http://metro.kingcounty.gov/am/vehicles/breda-trolley.html. Retrieved 2009-12-04.

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Special uses	Advert bus • Airport bus • Armoured bus • Campaign bus • Party bus • Police bus • School bus • Transit bus • Training bus • Sleeper bus • Tour bus

Technologies	Dual-mode bus • Electric bus • Fuel cell bus • Guided bus • Gyrobus • Hybrid electric bus • Trolleybus

Manufacturing	Bus manufacturing • Bus manufacturers

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Dual-mode bus

Examples

See also

References