Further work to upgrade a main railway line is set to cause transport disruption next month. Network Rail teams have now completed two weekends of upgrade work as part of the billion-pound East Coast Digital Programme on the East Coast Main Line, with further work planned between London King’s Cross and Grantham in February. The work will result in some changes to services, including those to and from Newark, on Saturday, February 10, and Sunday, February 11, work will be taking place between London and Peterborough. LNER will be operating a reduced service starting and terminating at Grantham…