The issue within the Muirhouse area will affect all routes to the south of Glasgow, Barrhead, Kilmarnock and Carlisle.

No services are able to run on routes between Glasgow Central and Carlisle, Kilmarnock, Barrhead, Newton, Neilston and East Kilbride.
(Permalink) Glasgow and Kilmarnock Joint Glasgow and South Western Main Line Muirhouse Signalling fault

Passengers, and freight customers, will benefit from more than £16m of investment in Scotland's Railway over this Christmas and New Year. Engineers will be relaying track, renewing junctions and refurbishing structures across the country with work taking place in Glasgow, Edinburgh, Stirling, Perth and Inverness. In Glasgow, a key line into Glasgow Queen Street High Level station will be affected from Christmas Day until January 2 while engineers renew points - rails which move to allow trains to cross from one track to another - and replace over 1km of track at Cadder. This will have an impact on some services in and out of Glasgow Queen Street, but alternative routes between Glasgow and Edinburgh will be available. A number of services will continue to run. On the south side of the Clyde, engineers will be working from New Year's Day until the early hours of January 4, to renew junctions and life-expired track between Muirhouse and Eglinton Street, near Glasgow Central. In Stirlingshire, engineers will be delivering a range of works to renew track, upgrade signalling and level crossings while in Perth and Inverness works will be delivered to improve track at both stations.
(Permalink) Cadder Christmas Eglinton Street Inverness Muirhouse Perth Rail works