This evidence review shows that the recent levelling off in traffic growth masks different trends for different vehicles, areas, road types and population groups.
It assesses the evidence on 10 broad explanatory factors to consider how each has contributed to the change in travel trends, including:
The findings suggest that in some areas, eg
- changing social attitudes
more evidence is needed to establish their full effects.
In other areas, eg
- the effect of incomes
- company car use
findings suggest there is reasonable evidence that these help explain the fall in average distance travelled by car.
The report concludes with some possible implications for future traffic growth, across different groups and locations affected.