Dual-mode bus
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- This article concerns buses that can run with two independent fuel sources. For other hybrid technologies, see Hybrid bus or Fuel cell bus
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).
In contrast to other hybrid buses, dual mode buses can run forever exclusively on their electric power source (wires). For this ability, all the examples listed below involved use of dual mode buses to travel through a tunnel on electric overhead power.
[edit] Examples
This list is incomplete; you can help by expanding it.
- Seattle, Washington used similar dual-mode buses in its downtown bus tunnel until late 2004.
- Boston 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.
- Bergen features dual-mode buses.
[edit] See also
- Diesel-electric
- Dual-mode vehicle
- Electric bus
- Guided bus
- Rubber-tyred trams
- Trolleybus
- VAL
- Bombardier Guided Light Transit
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