The environmental company strategy of the case company Oslo Sporveier includes scenarios for the development of person transport in Oslo up to year 2016. The basis for three different scenarios is described. This paper presents the use of scenarios as background for environmental reporting. Emissions, energy, land and time use from person transport in the three different scenarios were determined. The scenarios were (i) a private car scenario, where the main growth in person transport is to be met with a strong increase in the use of private cars, (ii) a public transport scenario, where the increase in person transport is to be taken care of with a strong increase in the public transport, and (iii) the sustainability scenario, with a reduction in total person transport, increased share of public transport and walking/bicycling, and reduced share of private car use. The total energy use, CO2 emissions, NOx emissions and particle emissions from person transport in Oslo are reduced in all three scenarios compared with the situation in 1996. The reduction is smallest in the private car scenario and largest in the sustainability scenario. The land use increases in the private car scenario and the public transport scenario, while there is a reduction in land use in the sustainability scenario. The total time consumption connected to person transport increases in all three scenarios. Copyright © 2004 John Wiley & Sons, Ltd and ERP Environment.