It was obvious from an early stage that the realisation of the targets in support of the main primary targets would prove difficult to achieve. This was particularly obvious in the case of the target set for the reduction in excessive speed. A national speed survey carried out by the National Roads Authority in 1999 showed that the speed of vehicles was in excess of the established speed limits on all road classes. This prompted the road safety high-level group to call for a refocusing of the target to concentrate resources on single-carriageway national primary routes, given the higher concentration of risk associated with those roads.