THE Scottish Government has been asked to provide official figures on the extent of train disruption on the Helensburgh Central railway line.

Conservative West of Scotland MSP Maurice Corry has tabled a question at Holyrood asking the government “how many times in each of the last 12 months ScotRail services from Edinburgh to Helensburgh Central have (a) been delayed, (b) been cancelled and (c) terminated before reaching Helensburgh Central”.

Mr Corry, who lives in Helensburgh, has also tabled similar questions seeking official figures on the scale of disruption on the Airdrie-Balloch and Cumbernauld-Dumbarton services.

According to the Scottish Parliament’s website, an answer is expected on or by Friday, May 18.

Meanwhile, figures published this week showed that fewer than half of all ScotRail services to Helensburgh Central reached their destination within 60 seconds of their scheduled arrival time.

The figure for the four-week period to April 28 was 47.1 per cent – though according to the official method of measuring punctuality, 84.2 per cent of trains to Helensburgh Central during the same period arrived within five minutes of their due time, having stopped at all scheduled stations on the route.

Alex Hynes, ScotRail's managing director, was quizzed by MSPs on Wednesday over the company's performance and delays in introducing new trains on its network.