After the presentation of the new 12 metre Mercedes Citaro buses, recently held in Piazza Unità, a further batch of EEV diesel Irisbus vehicles is being acquired.
A number of these buses are already running on a few lines: they are easily recognizable by the company’s pale-blue custom paint.
What does EEV mean?
EEV is an acronym for “Enhanced Environmentally-friendly Vehicle, defining vehicles producing emissions with levels below those established by current legislation.
The table below shows EEV vehicles’ improved levels of emissions compared to Euro4 and Euro5 vehicles. A particularly striking feature of this kind of vehicles is the very low level of emissions of both fumes and particles.
|ESC/ELR Test Cycle|
|Euro 4||Euro 5||EEV|
|CO||1,50 g/kWh||1,50 g/kWh||1,50 g/kWh|
|HC||0,46 g/kWh||0,46 g/kWh||0,25 g/kWh|
|NOx||3,50 g/kWh||2,00 g/kWh||2,00 g/kWh|
|PM||0,02 g/kWh||0,02 g/kWh||0,02 g/kWh|
|Fumes||0,50 m-1||0,50 m-1||0,15 m-1|
Car fleet renewal
The purchase of highly technological environmentally-friendly vehicles was part of a car fleet renewal plan which led to the acquisition of 348 new vehicles from 2001 to 2010.