kaksiväyläisen

Kaksiväyläinen refers to a type of railway track with two parallel tracks, each for a different direction of traffic. This arrangement is different from the more common single-track railway, where trains must often wait for each other to pass.

Kaksiväyläinen tracks typically consist of two permanent way structures, typically with the same gauge, separated by a track centre spacing of typically around 2-3 meters. Each track has its own separate structures for signals, electrification, and ballast, allowing for independent operations of trains in both directions.

This type of track is commonly found in main-line rail systems, particularly in mountainous or heavily trafficked regions, where meeting and passing points cannot be easily regained, and trains often operate at high speeds. The use of parallel tracks allows for improved safety and increased efficiency, as trains can pass each other and maintain line speed without significant reductions.

The construction and maintenance of kaksiväyläinen tracks require significant resources and investment. This type of track benefits from computer-designed camber and drainage systems, as well as robust foundations to withstand high-speed traffic and possible ground conditions such as ballast settlement or settlement due to induced stress.

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