The UK hosts the world's largest multi-site ultra low carbon vehicle demonstrator. The programme includes 349 vehicles from 18 different manufactures being demonstrated in eight different locations. The trial commenced in December 2009 and has since completed over 180,000 trips and 1,000,000 miles. The average journey length was 6 miles, which compares to a UK national average journey length of 7 miles, and the average daily distance travelled was 25 miles. 99% of all journeys were less than 40 miles. Users adapted quickly to the vehicles and journey patters did not significantly alter throughout the first three months of vehicle usage. 63.2% of all journeys were below 5 miles and 99% of journeys were below 40 miles. The maximum journey length was 100.1 miles. The learning curve for the transition from an ICV to an EV is extremely steep but overall, participants in the current trial met those challenges, often by the point of the 1 week interview. The overriding concern remains range and the associated issue of battery charge. Only a very small minority of drivers experienced any difficulty in adjusting back to driving a conventional vehicle as a result of driving their EV: only 16% of PDs (M = 2.14, SD = 1.10) and 18% of FDs (M = 2.06, SD = 1.22) meaning that a driver can easily change between driving an ICV and an EV. Although users quickly adapted to the range capabilities of the vehicles, they were less quick to adapt their charging behaviour. From month one to three the average charge transferred per charging event increased from 26.9% to 30.3% respectively. Over the same time period PDs and FDs reduced their day time charging events by 9% and 23% respectively, showing that users adopt less frequent longer charges as they become familiar with the EV and their own journey habits. Although charging requires drivers to learn a completely new habit (involving both mastering the mechanics of the system and establishing a routine for charging), they were optimistic about their charging experiences even prior to participating in the trial. On the whole drivers adapt positively to charging once they get the vehicle (notwithstanding some improvements that could be made to the ease of lifting and fitting the cables for some drivers). As the trial progresses drivers more strongly endorse the existing charging times as suiting their daily routine and are particularly positive about the time and cost saved through charging a vehicle at home (as opposed to filling up with petrol at a gas station). Drivers also believe an extensive network of public charging sites to be essential in their willingness to have an EV (even though their 3 month data show that they recognise public charging sites to be non-essential for everyday use). The application of smart charging technology at domestic properties achieved its goal of moving the demand peak for PDs of electric vehicles to off-peak tariffs times. 34% of charging occurred between the hours of 9am to 1pm.


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    Titel :

    Ultra low carbon vehicle demonstrator programme - Post-experience usage patterns, driver attitudes and behavioural change


    Beteiligte:
    Everett, Andrew (Autor:in) / Walsh, Chris (Autor:in) / Carroll, Steve (Autor:in) / Burgess, Mark (Autor:in) / Harris, Margret (Autor:in)

    Erschienen in:

    Erscheinungsdatum :

    2012


    Format / Umfang :

    11 Seiten, 10 Bilder, 3 Quellen



    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




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