Energy Use and Carbon Dioxide Emissions From the Rail and Road Transport Systems: the Importance of Infrastructure
2006 (English)Manuscript (preprint) (Other academic)
The indirect environmental pressures from the material use of the transport infrastructure are often excluded in analysis of the transport sector. In this paper we analyze the energy and CO2 emissions from the rail and road transport sectors from both the traffic and the infrastructure. The analysis uses a cradle-to-gate methodology to calculate the environmental pressures and allocate them to different rail and road vehicles. The railway infrastructure is more energy intensive. Passenger buses use the least amount of energy among the passenger vehicles, but since the electrified trains in Sweden mostly use hydropower for electricity production, the latter has less CO2 emissions. Electrified freight trains are both more energy efficient and emit less CO2 compared to long-distance trucks. It is also interesting to note what would happen if the traffic in the road transport system were fuelled by renewable energy carriers instead of fossil fuels. Carbon dioxide emissions from road transport would thereby decrease, making it reasonable to question the environmental advantage of the railway.
Place, publisher, year, edition, pages
Engineering and Technology
IdentifiersURN: urn:nbn:se:liu:diva-14491OAI: oai:DiVA.org:liu-14491DiVA: diva2:23587