First Glasgow’s vehicle for route 75 in the city is an Enviro400; Trentbarton’s is an Enviro200 for the i4 route in Nottingham.
ADL is mounting the SmartVision technology to the vehicles during assembly. It is supplied by French company VisionSystems, through UK distributor 21st Century Technology.
The cameras transmit to in-cab displays, giving the driver a normal mirror view at the top of the monitor and a wide angle view in the lower half. Screen brightness adjusts automatically, day and night.
The offside display is mounted on the A pillar, with the nearside display located centrally to avoid obstruction by an open door. Image quality is maintained in all weathers, as software removes distortion from rain drops or dirt on the lens, while an optional camera heater clears ice or fogging.
In addition to improving visibility for drivers, says ADL, operators benefit from reduced risk of mirror damage or injury to passengers or pedestrians, citing a potential saving of up to £25,000 per bus. A reduction in aerodynamic resistance can also deliver a small fuel economy benefit, especially at higher speeds, adds the bus maker.
The system it is VCA certified for both the Enviro200 single-decker and Enviro400 double-decker vehicles.