This article is about buses that can operate from two independent fuel sources. For other hybrid technologies, see Hybrid electric bus and Fuel cell bus. For vehicles for two infrastructure types, see Dual-mode vehicle.
A dual-mode bus is a bus that can run independently on power from two different sources, typically electricity from overhead lines like a trolleybus or from batteries like a hybrid bus, 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.
Boston Neoplan DMA-460LF dual-mode trolleybus, operating in diesel mode (with its trolley poles lowered)
Many modern trolleybuses are equipped with auxiliary propulsion systems, either using a small diesel engine or battery power, allowing movement away from the overhead wires, called "off-wire" movement, but such vehicles are generally not considered to be dual-mode buses if their off-wire capability is very limited. Examples include the fleet of about 300 trolleybuses in San Francisco[1] and the trolleybuses used on a 2005-opened system in Rome, Italy,[2] which are capable of running on battery power only for short distances or short periods of time before needing recharging. The Rome vehicles are powered from overhead trolley wires over most of the 11.5-km route and only use battery power on the 500-metre section closest to the city centre.[2] Dual mode trolleybuses in a number of Chinese cities can operate significant distances (8 to 10 km) off-wire on battery power.[3]
Boston, Massachusetts, USA installed dual-mode Neoplan DMA-460LF 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 to South Station; diesel power is used to run on city streets and highways, including the Ted Williams Tunnel to Logan Airport
Castellón de la Plana, Spain installed a new trolleybus line that went into operation 25 June 2008.[5][6] The Irisbus Civis vehicles are optically guided and are capable of switching to diesel engine power for turning in front of the Parque Ribalta.[7][8]
Ploiești, Romania features ex-Lausanne Neoplan N6121 dual-mode buses in the Ploiești trolleybus system.
São Paulo, Brazil also has a dual bus that operates in the Jabaquara district, in the south zone. One of these is a Superarticulated Bus that operates in the Corredor ABD.
Gdynia and Lublin, both Poland have the dual-mode buses running as part of their trolleybusnetworks, in case of Gdynia, their (PKT's) duobuses are Solaris Trollinos and Mercedes Citaros (which were converted into trolleybuses in 2012). Both of these types, unlike typical dual-mode buses, are trolleybus and electric bus hybrids.
^ abLuan, Xiaona 栾晓娜 (2014-06-26). . 东方网 (in Chinese). Archived from the original on 2017-10-11. Retrieved 2017-10-11.
^. 新华网 (in Chinese). 2020-01-15. Archived from the original on 2020-01-16. Retrieved 2020-03-14.
^Chick, Dave. . British Trolleybus Society. Archived from the original on January 6, 2009. Retrieved 2009-01-10.
^"Castellón-de-la-Playa (sic) Trolleybus Photos". members.shaw.ca/synt. 18 December 2008. from the original on 2009-02-12. Retrieved 2009-01-10.
^. Innovations Report. 2008-07-07. Archived from the original on 2009-02-18. Retrieved 2009-01-11.
^. members.shaw.ca/synt. 3 July 2008. Archived from the original on 2009-02-12. Retrieved 2009-01-10.
^. Metro Online. Archived from the original on 2010-05-28. Retrieved 2009-12-04.
^. King County. Archived from the original on 2014-10-07. Retrieved 2009-12-04.
External links
Media related to Dual-mode buses at Wikimedia Commons
January 25, 2023
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This article is about buses that can operate from two independent fuel sources For other hybrid technologies see Hybrid electric bus and Fuel cell bus For vehicles for two infrastructure types see Dual mode vehicle A dual mode bus is a bus that can run independently on power from two different sources typically electricity from overhead lines like a trolleybus or from batteries like a hybrid bus 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 Boston Neoplan DMA 460LF dual mode trolleybus operating in diesel mode with its trolley poles lowered Many modern trolleybuses are equipped with auxiliary propulsion systems either using a small diesel engine or battery power allowing movement away from the overhead wires called off wire movement but such vehicles are generally not considered to be dual mode buses if their off wire capability is very limited Examples include the fleet of about 300 trolleybuses in San Francisco 1 and the trolleybuses used on a 2005 opened system in Rome Italy 2 which are capable of running on battery power only for short distances or short periods of time before needing recharging The Rome vehicles are powered from overhead trolley wires over most of the 11 5 km route and only use battery power on the 500 metre section closest to the city centre 2 Dual mode trolleybuses in a number of Chinese cities can operate significant distances 8 to 10 km off wire on battery power 3 Contents 1 Examples 2 See also 3 References 4 External linksExamples Edit The Downtown Seattle Transit Tunnel was served exclusively by dual mode buses from its opening in 1990 until 2004 A dual mode bus in Ploiești Romania 2010 This transport related list is incomplete you can help by adding missing items August 2008 Beijing China uses a fleet of over 1 250 dual mode trolleybuses for its trolleybus network 4 Bergen Norway features dual mode MAN Neoplan buses in the Bergen trolleybus system Boston Massachusetts USA installed dual mode Neoplan DMA 460LF 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 to South Station diesel power is used to run on city streets and highways including the Ted Williams Tunnel to Logan Airport Castellon de la Plana Spain installed a new trolleybus line that went into operation 25 June 2008 5 6 The Irisbus Civis vehicles are optically guided and are capable of switching to diesel engine power for turning in front of the Parque Ribalta 7 8 Seattle Washington USA used 236 dual mode Breda ETB 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 9 10 and were replaced in the tunnel by hybrid diesel electric buses Shanghai China uses a fleet of over 300 dual mode trolleybuses for its network 3 Ploiești Romania features ex Lausanne Neoplan N6121 dual mode buses in the Ploiești trolleybus system Sao Paulo Brazil also has a dual bus that operates in the Jabaquara district in the south zone One of these is a Superarticulated Bus that operates in the Corredor ABD Gdynia and Lublin both Poland have the dual mode buses running as part of their trolleybus networks in case of Gdynia their PKT s duobuses are Solaris Trollinos and Mercedes Citaros which were converted into trolleybuses in 2012 Both of these types unlike typical dual mode buses are trolleybus and electric bus hybrids See also EditDiesel electric transmission Dual mode vehicle Electric bus Electric vehicle battery Electro diesel locomotive locomotive equivalent Guided bus List of busesReferences Edit About Trolley Buses San Francisco MTA Archived from the original on 2011 12 18 Retrieved 2009 12 15 a b 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 a b Luan Xiaona 栾晓娜 2014 06 26 上海无轨电车 复兴 全换成新型辫子车 车辆增加两倍 东方网 in Chinese Archived from the original on 2017 10 11 Retrieved 2017 10 11 北京多措并举治理PM2 5 一微克一微克往下抠 新华网 in Chinese 2020 01 15 Archived from the original on 2020 01 16 Retrieved 2020 03 14 Chick Dave Castellon British Trolleybus Society Archived from the original on January 6 2009 Retrieved 2009 01 10 Castellon de la Playa sic Trolleybus Photos members shaw ca synt 18 December 2008 Archived from the original on 2009 02 12 Retrieved 2009 01 10 A First in Spain Optiguide for Castellon s Trolleybus Line Innovations Report 2008 07 07 Archived from the original on 2009 02 18 Retrieved 2009 01 11 Castellon de la playa notes members shaw ca synt 3 July 2008 Archived from the original on 2009 02 12 Retrieved 2009 01 10 Retired Breda 5000 Dual Mode Bus Metro Online Archived from the original on 2010 05 28 Retrieved 2009 12 04 Breda Articulated Trolley Bus King County Archived from the original on 2014 10 07 Retrieved 2009 12 04 External links Edit Media related to Dual mode buses at Wikimedia Commons Retrieved from https en wikipedia org w index php title Dual mode bus amp oldid 1131373621, wikipedia, wiki, book, books, library,
