The general conclusion that the extent of air pollution could be reduced if people travelled by electric train instead of by car is challenged by comparing the total amounts of sulphur dioxide, nitrogen oxides, carbon dioxide, carbon monoxide, hydrocarbons and particulates produced by each means of transport, taking the production of electricity needed for the propulsion of the ''S-train'' (The electrified metropolitan railways of Copenhagen) into consideration. It is also attempted to reckon the amount of resulting emission if the number of cars driving in the Copenhagen area was reduced by 1.5 % answering to an increase of S-train transport by 10%. In Denmark, it is stated, the use of cars has increased by 40% between 1980 and 1990 and the use of the electric trains by 7% from 1980 - 1990. Gross energy consumption by car use has increased by one third and by 17% in the case of electric trains. Train tickets have increased in price whilst cars and petrol have become cheaper. It is concluded that gross energy consumption per person/km in a car and by train is about the same, but emissions in this respect vary considerably according to the types of fuel and technology utilized. Emissions resulting from the same journey taken by car and by walking/cycling, bus and electric train were calculated and the results are presented in detail. It was found that driving by car gave a higher emission per person/km of nitrogen oxides, hydrocarbons and carbon monoxide but lower emissions of sulphur dioxide. (AB)


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    Titel :

    Luftemissioner ved personbilkoersel contra S-togskoersel. (Emissions to the air resulting from motoring compared to using public electric-train transport)


    Beteiligte:
    P. Pedersen (Autor:in)

    Erscheinungsdatum :

    1993


    Format / Umfang :

    98 pages


    Medientyp :

    Report


    Format :

    Keine Angabe


    Sprache :

    Englisch





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