Interactions of environmental and safety measures for sustainable road transportation.

This study examined interactions of environmental and safety measures for road
transportation. The results showed that a vast majority of the examined measures support
both policy objectives and thereby contribute effectively to sustainable transportation.
However, there were also measures with conflicting effects, although the number of those
measures was limited. In addition, there were a number of measures with no interaction.
Furthermore, many potential effects were not documented and therefore in many instances
only likely effects were noted.
There are two practical implications of this study. First, those measures that result in
double benefits should be encouraged to be implemented. Second, in case of conflicting
measures, the specific implementations should attempt to minimize the negative effects.