Rail users will find more disruption taking place on the Derry to Belfast line.
These latest works will be of particular importance to anyone looking to use the rail line in order to attend events marking the 51st anniversary of Bloody Sunday.
Due to engineering works, bus substitutions will be in operation on the Derry line this Sunday January 29.
The bus substitution will operate between Yorkgate, Belfast Lanyon Place and Belfast Great Victoria Street, with a normal timetable between Yorkgate and Derry.
NI Railways tickets can also be used on Ulsterbus services including the 212 Goldliner service and Metro scheduled services.
Passengers from Botanic and City Hospital travelling to Derry line stations should use bus substitution services from Belfast Great Victoria Street and Lanyon Place.
Customers are advised to check times before travel, as bus sub times may differ from usual scheduled rail departure times.
Normal services will operate on the Bangor to Portadown and Larne Lines, as well as for Enterprise.
For more information on the upcoming line closures and the associated projects please visit www.translink.co.uk/lineimprovements
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