The construction of a composite road safety performance indicator (or index) is becoming increasingly popular in recent decades for ranking countries and identifying poor areas. However, most index development studies only concentrate on one year, which means that there is a lack of cross-year comparison. To monitor the progress in road safety over time, this paper focuses on the road safety performance changes of a set of European countries between 2008 and 2015. To this end, index scores for these European countries are computed by combining a number of safety performance indicators (SPIs). The same SPIs are selected and the same analysis method is applied using data of both 2008 and 2015. Comparison results show that road safety performance ranking of several countries changes a lot over time. In addition, by deducing the weights allocated to each indicator in 2008 and 2015, useful insight in the changes of intervention priority is obtained.

CICTP;Road safety;safety performance indicator;Composite index;Cross-year comparison