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Belfast–Derry line facts for kids

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Belfast–Derry Line
Castlerock station, Northern Ireland Railways - geograph.org.uk - 213382.jpg
NI Railways Class 3000 at Castlerock.
Overview
Status Operational
Owner Translink
Locale Northern Ireland
Termini Belfast Great Victoria Street
Londonderry / Coleraine
Stations 15
Service
Type
  • Heavy rail
  • Commuter rail
System NI Railways
Services Belfast-Derry
Belfast-Coleraine (continues to Portrush)
Derry-Portadown (once daily)
Route number NIR Service 5/6
Operator(s) NI Railways
Rolling stock
  • Class 3000 (C3K)
  • Class 4000 (C4K)
Ridership 3 million a year
Technical
Number of tracks Double track from Belfast to Monkstown
Single line with Passing loops from Monkstown to Londonderry
Track gauge 1,600 mm (5 ft 3 in) Irish gauge
Operating speed 90 mph (140 km/h)

The Belfast–Derry railway line connects the cities of Belfast and Derry in Northern Ireland. It's also called the Derry~Londonderry Line by NI Railways. For most of its journey, it's a single track. This means trains use special "passing points" to let other trains go by.

How Often Do Trains Run?

Weekday and Saturday Services

On weekdays and Saturdays, trains usually run every hour. They travel between Great Victoria Street in Belfast and Londonderry. There are also shuttle trains that connect Portrush with the main line at Coleraine.

Sunday Services

On Sundays, trains from Belfast to Derry run every two hours. If a train isn't leaving directly from Derry, the shuttle service from Portrush will continue all the way to Belfast. This means passengers at Derry, Bellarena, and Castlerock might wait longer.

Past Journeys

Before 2001, trains took a different route. They went through places like Crumlin and Lisburn. When the Bleach Green viaduct reopened, journeys between Belfast and Derry became much shorter. The old route is now mostly used for training new train drivers.

Upgrading the Line

Recent Improvements

In 2011, there were plans to reduce train services. This was to allow for important safety work on the line. At first, there wasn't enough money for the £75 million upgrade. People worried the line might close forever.

But in October 2011, a minister found money for the project. The upgrade started in July 2012 and happened in three stages.

Phase 1: New Tracks

The first stage meant closing parts of the line for nine months. Workers completely replaced sections of the track. They used a modern method called continuous welded rail. This makes the track stronger and last longer. This phase finished in March 2013. For the first time in decades, a morning train reached Derry before 9:00 am!

Phase 2: Better Signalling

In the second stage, some old passing loops were removed. New ones were built in different places, like at Bellarena. New signalling systems were put in place. This made the line safer and more efficient. An hourly train service between Belfast and Derry started on July 3, 2017.

Phase 3: Future Plans

The third stage will involve more track upgrades. It aims to allow trains to travel at 90 mph (140 km/h) between Castlerock and Derry. However, funding for this part of the project is still uncertain.

Other future ideas include adding a second track in some areas. This would allow more trains to run at the same time. In October 2019, the Derry train station moved to a new, updated building.

Cool Engineering on the Line

At Coleraine, there's a special bascule bridge that the railway crosses. This bridge can lift up to let boats pass on the River Bann.

Near Castlerock station, there are two tunnels. They were built a long time ago in 1845. The Castlerock tunnel is the longest railway tunnel in Northern Ireland. It's about 668 yards long! After a short open section, trains go through the shorter Downhill tunnel, which is 301 yards long.

How Trains Are Controlled

The train signals from Belfast to Ballymena are controlled from a main center in Belfast. Further along the line, signals and level crossings are controlled from the Coleraine signal cabin. After a big upgrade in 2016, the whole line uses modern colour light signals. This means the old signal boxes at Castlerock and Waterside are now closed.

What Trains Use This Line?

The Belfast–Derry line uses modern diesel trains. These are the NIR Class 3000 and NIR Class 4000 models. They are sometimes called C3K and C4K trains.

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