and so a replacement service had to be introduced. This consisted of a DMU shuttle along the old main line into Glasgow, which was still operational as far as the works at St Rollox; however, just east of there they were re-routed onto the former Edinburgh and Glasgow Railway's Sighthill Branch to Cowlairs, which they used as far as . Trains terminated there, with passengers having to change onto North Clyde Line electric services over the former City of Glasgow Union Railway branch to and Queen Street Low Level. Regular local services southwards towards and had also ceased by this time, although a limited number of longer distance trains continued to call there - notably the London Euston to Clansman & Royal Highlander expresses from the early 1970s onwards. Through running to Queen Street High Level was eventually introduced in 1989, and since then several intermediate local stations along the line have reopened with backing from the Strathclyde Passenger Transport Executive. Services both northwards to (September 1999) and southwards to Motherwell (May 1996) have also been reintroduced, whilst the opening of the Cowlairs Chord in 1993 meant that services could now proceed directly to Queen Street without having to reverse alongside the depot at Eastfield as before. The lines to Glasgow & Coatbridge have been electrified (as part of the Edinburgh to Glasgow Improvement Programme), with electric operation beginning in the spring of 2014. This has seen service frequencies on the Glasgow line increased to three per hour, and through running on electric services to the west end of Glasgow via the North Clyde Line through Queen Street Low Level. The station building is also undergoing major refurbishment as part of this work, with a new modular structure opened in July that year. Further electrification northwards to Greenhill Junction is due for completion in 2018 (as part of the next phase of the EGIP), which will coincide with a further planned timetable recast that will see the existing service to Falkirk doubled to two trains per hour and extended through to Edinburgh Waverley via . This will see the town given direct links to the Scottish capital for the first time, as well as upping the Glasgow Queen Street service frequency to four trains per hour. The timetable upgrade & infrastructure work is being funded by Transport Scotland. Services 2017 Off-Peak Monday to Saturday: 2tph to Dumbarton Central via Springburn