The buses of the future
Tests have been performed on several mass-produced hybrid buses in an effort to save fuel and reduce pollution.
The Hynovis concept bus
In 2009, RATP tested several different standard and articulated hybrid (electric/diesel) bus models in Paris and its outskirts. The regenerative braking system reduces fuel consumption and CO2 emissions by at least 15%. This reduction can be extended to as much as 20 or 25% when the bus is equipped with the “stop & start” function, which allows noiseless restart using the recovered electricity. In this case, the hybrid bus has the advantage of allowing flexible driving and noiseless restart. Urban buses, which stop and start frequently, offer ideal conditions for recovering braking energy.
The Lion’s City Hybrid by Man was tested on four lines in Paris and its outskirts. The Hynovis Concept-bus by Iribus Iveco: specially developed to meet the RATP's functional requirements, this bus is fitted with a hydraulic hybridisation system and a stop/start function. The Hynovis boasts an innovative architecture, with a low-slung floor for the first 10m of the 12m vehicle and an aisle width of up to 1.2m, as against 90cm in a conventional bus. The bus was produced as part of a research project financed by the Ademe (French Environment and Energy Saving Agency) and the ANR (French National Research Agency), endorsed by Predi (the National Programme for Research and Innovation in Land Transport) and the LUTB (Lyon Urban Truck & Bus) innovation cluster.
In March 2010, in order to meet its fleet modernisation needs over the period 2011-2013, the RATP's board authorised the purchase of 840 to 1,400 buses from three manufacturers: Iveco, Evobus and Man. The total amount spent on this fleet renewal, which will be funded exclusively by RATP, could be anywhere between €172 million and €287 million.This contract provides for the supply of:
- 420-700 standard urban buses by Iveco
- 210-350 standard urban buses by Evobus
- 210-350 standard urban buses by Man, with motorway configuration possible.
These new vehicles will replace buses that are not accessible to people with limited mobility. The purchases should allow RATP to achieve its goal of making all 351 bus lines in the Ile-de-France network accessible by 2015. The new Iveco, Evobus and Man buses meet RATP’s requirements in terms of passenger information and comfort.