The railway was built as a double-track main line throughout.

The new double-track sections allow for better time keeping over the whole line.

Trains have run through again on the now double-track line since 5 November.

The distance between the track centres makes a difference in cost and performance of a double-track line.

From there the existing double-track line would be shared through the airport.

This railway branch was completed as a double-track line in 1885.

When completed, the line was the longest double-track railway in the world.

This scheme avoided the cost of a new double-track tunnel.

Two parallel tunnel tubes were cut through the mountain for the double-track line.

Double-track railways, especially older ones, may use each track exclusively in one direction.

The station is underground and has two platforms, one on each side of a double-track tunnel.

The line is fully double-track, and draws 600 V electrical supply.

And we came out of the woods then and headed for the double-track section.

North of the Hauptbahnhof the line divides into two double-track lines.

For the adventurous there is a double-track summer toboggan run, where you can race new found friends!

Plans later developed circa 1980 to remove the tunnel and put in a larger, double-track line.

North of Quakertown, the double-track line is out of service.

The double-track lines were torn up and replaced with a single-track line.

The study found the same double-track high-speed connection would cost £3.6bn (4.4 times greater than for classic speed).

There are plans to upgrade to a high-performance, double-track railway.

As a result, Wallaceville will become a double-track station.

Also, the double-track railway construction in Germany may be delayed by up to seven years, according to the treaty.

A new double-track bridge using large double Warren trusses was built on its north side in 1912.

It was planned as a double-track line with the aim to bypassing urban areas where possible.

The double-track mainline that passes through town sees about 50 to 60 trains each day.

On the left, a new double track section can be seen.

The entire new section would also be built with double track.

See those double tracks leading up out of the water?

The station is the southern end of the double track.

This is not possible even on a double track railway.

The first seven kilometers of the line are double track.

Just before the line of trees turn right down double track descent.

The line was double track throughout with numerous points to allow short working.

The line, with double track along its route, was not completely ready until 1937.

Although the line had been planned to have double tracks, only one was ever built.

It was the second line in Switzerland to be built with double track.

The only other sections of double track are near stations.

The new double track line was planned to be further inland.

The line is on a double track in its entirety.

In places, the line did not need the originally planned double track.

Generally, the left/right principle in a country is followed mostly on double track.

The double track changed to a single and stations decreased.

The city council approved building the line on 28 October 1926, but without double track all the way.

Double tracks had been laid in through both open ends of the big test building.

The line was built to (standard gauge) and double track.

In contrast to the first section, this line was built for its full length as double track.

However, there are other preserved lines that were previously double track.

Secondly, the amount of traffic was expected to require double track.

Apart from a minor branch to the city centre, the line was not double track before 1922.

There, he could look down at the double tracks from no more than twenty feet and wait for the train to pass.