The Optare Sigma was a step-entrance single-deck bus body manufactured by
Optare between 1994 and 1996 on the
Dennis Lance chassis. The body was constructed from
Alusuisse aluminium alloy with
fiberglass
Fiberglass (American English) or fibreglass (Commonwealth English) is a common type of fiber-reinforced plastic using glass fiber. The fibers may be randomly arranged, flattened into a sheet called a chopped strand mat, or woven into glass cl ...
front and rear panels.
[Daughters of Delta '']Buses
A bus (contracted from omnibus, with variants multibus, motorbus, autobus, etc.) is a road vehicle that carries significantly more passengers than an average car or van. It is most commonly used in public transport, but is also in use for ...
'' issue 690 September 2012 page 40 It was the single-deck version of the
Optare Spectra.
The Sigma was not a
low-floor
Accessibility is the design of products, devices, services, vehicles, or environments so as to be usable by people with disabilities. The concept of accessible design and practice of accessible development ensures both "direct access" (i. ...
bus although its floor height of 40cm is considered low for a step-entrance design. The first built had two doors, the remainder only one.
[ It was also similar in design to the Optare Delta. The Vecta had the same body styling as the Sigma but was designed for medium-length chassis, the Sigma was for full length chassis.][The Model Page '' Bus & Coach Preservation'' February 2018 page 64]Trent Barton
Trentbarton operates both local and regional bus services in Derbyshire, Leicestershire, Nottinghamshire and Staffordshire, England. It is a subsidiary of the Wellglade Group.
History
In October 1913, Trent Motor Traction Company was fo ...
(17) and Gateshead & District (14).[Optare Sigma]
Bus Lists on the Web
Unlike the Spectra, it did not last long enough to be developed into a true low-floor bus
A low-floor bus is a bus or trolleybus that has no steps between the ground and the floor of the bus at one or more entrances, and low floor for part or all of the passenger cabin. A bus with a partial low floor may also be referred to as a low- ...
and was replaced by the Optare Excel in 1995.[
]
References
External links
Sigma
Sigma (; uppercase Σ, lowercase σ, lowercase in word-final position ς; grc-gre, σίγμα) is the eighteenth letter of the Greek alphabet. In the system of Greek numerals, it has a value of 200. In general mathematics, uppercase Σ is used ...
Vehicles introduced in 1994
{{bus-stub