Robertson, Kerstin; Jägerbrand, Annika; Eriksson, Jan R. - In: Challenges 6 (2015) 1, pp. 55-70
Established practice is available as a reference for evaluating sustainable transport and CO<sub>2</sub> emissions at national, European and global levels, but comparing corresponding systems at the regional and local levels are more challenging. Therefore, this paper analyses the use of indicators,...