A report entitled "Is Scotland On The Right Track?" was published on 13 August. Commissioned by ScotRail franchise holder, Abellio, research for the report was carried out independently.

The writers, former UK Transport Minister Tom Harris and Mark Diffley Consultancy and Research, employed ScotPulse to conduct a survey of 1,063 people, the results of which are central to the report.

One section covers the anomaly that the infrastructure of Scottish railways, although managed in Scotland by Network Rail Scotland Route and funded by Transport Scotland, is ultimately answerable to the DfT in England - a situation not mirrored in the road sector. Here's what the report has to say about the survey results:

"More than six in ten Scots believe that all decisions about the railways in Scotland should be taken by organisations overseen by the Scottish Government, while a further 30 per cent want a combination of UK and Scottish Government oversight. Among the most frequent passengers, 93 per cent want either exclusively Scottish Government oversight (73 per cent) or UK and Scottish Government oversight (21 per cent). Arguably, the results are unsurprising given the natural preference towards devolution in wider public life in Scotland."

The UK government is unwilling to consider any change to the current arrangement.