i am due to go up to Glasgow from London Euston next week. Was checking my times and have noticed that my 09.30 departure from Euston was originally due in at Glasgow Central at 13.59. This has now be changed to 14.10. I have also noticed that several trains to and from Carstairs are to be replaced with bus replacements from Monday 30th July onwards. Have checked for potential engineering works in this area next week, but nothing is showing. Anyone know what is going on here?