Possibly but it's a bloody expensive scheme for only 5 deaths a year, which seems quite low considering the length anyway?
I'm not sure that the families of those, or those of us similarly affected elsewhere, would consider that to be as insignificant as this suggests..
The A9 is undeniably a poor road. Remember that the dualling was due to be completed last year, but that's a long and different story.
The 2 new sections which have been dualled have been a significant help, especially that at Kincraig which had split the long stretch between Slochd and Crubbenmore where serious backlogs built up behind slow lorries etc in which there were always likely to be idiots trying to jump up the queue.
Overall traffic levels may at times be lower than other roads, but in most places there is no diversion available when there is an accident. On the dualled stretches traffic can still continue in one direction when something happens.
It would be interesting to know what proportion of the people travelling on the A9 between Inverness and Perth are actually travelling to Perth / Edinburgh / Glasgow and do have the alternative option of using the train which many wouldn't.
In recent years the diversion of the Scotrail Edinburgh trains via Stirling has made using the train to destinations in Fife less convenient, and probably lengthened the journey into Edinburgh.
I would definitely choose to take the train rather than a bus everytime, but increasing entitlement free bus travel throughout Scotland will draw custom away from rail.
Reference was made upthread to 222s, that subject seems to have been very quiet over the last year or so.