New Routemaster

New Routemaster
Arriva London New Routemaster in October 2024
Overview
Manufacturer	Wrightbus
Production	2011–2017 1,000 units produced
Body and chassis
Doors	3 doors
Floor type	Low-floor
Powertrain
Engine	Cummins ISBe 4.5 (euro spec) 4-cylinder, 4.5 L (270 cu in), 185 hp (138 kW) Euro V compliant[1][2]
Capacity	80 (87 without wheelchair) (lower: 22 seats, 1 wheelchair space, 18 standing (25 standing without wheelchair); upper deck: 40 seats)
Transmission	Diesel in series 18 kWh[3] Microvast Lithium Titanate battery, Microvast LpTO,[4] Siemens ELFA2[5] electric traction motor[6]
Dimensions
Length	11.23 m (36 ft 10+1⁄8 in)[5]
Width	2.52 m (8 ft 3+1⁄4 in)
Height	4.39 m (14 ft 4+7⁄8 in)
Curb weight	12.65 t (12.45 long tons; 13.94 short tons)
Chronology
Predecessor	AEC Routemaster (spiritual)
Successor	Wright SRM

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The New Routemaster, originally referred to as the New Bus for London and colloquially as the Borismaster or Boris Bus, is a low-floor hybrid diesel–electric double-decker bus operated in London, England. Designed by Heatherwick Studio and manufactured by Wrightbus, it is notable for featuring a "hop-on hop-off" rear open platform similar to the original Routemaster bus design but updated to meet requirements for modern buses to be fully accessible. It first entered service in February 2012 with Arriva London on route 38.

The original AEC Routemaster was used as the standard London bus type, with a rear open platform and crewed by both a driver and conductor. After half a century it was withdrawn from service at the end of 2005 (except for two heritage routes which operated until 2014 and 2019 respectively), in favour of a fully accessible one-man-operated modern fleet (including articulated buses), none of which featured a rear open platform. The withdrawal of the Routemaster became an issue during the 2008 London mayoral election with Boris Johnson elected mayor with a campaign pledge to introduce a new Routemaster. Following an open design competition in 2008, Wrightbus was awarded the contract to build the bus at the end of 2009, and the final design was announced in May 2010.

The design for the new double-decker bus was inspired by the original AEC Routemaster and features three doors and two staircases to allow accessible boarding. Unlike the AEC Routemaster, the new bus has a full front end rather than the protruding, bonneted "half cab" design, and a rear platform with a door that can be closed, rather than being permanently open. The layout of the new bus allows it to be operated by the driver alone. The cost of each bus was £355,000 over the four-year procurement period.^[7] The last of the 1,000 New Routemasters was delivered in December 2017.