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Double-line

Mythimna turca

Classification

Class
Insecta
Family
Noctuidae

A double-track railway usually involves running one track in each direction, compared to a single-track railway, where trains in both directions share the same track. Overview In the earliest days of railways in the United Kingdom, most lines were built as double-track because of the difficulty of co-ordinating operations before the invention of the telegraph. The lines also tended to be busy enough to be beyond the capacity of a single track.

Distribution

(c) Drepanostoma, some rights reserved (CC BY), uploaded by Drepanostoma · CC-BY
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Countries in the Picchu catalog
Netherlands · 193Germany · 157Switzerland · 116United Kingdom · 65Italy · 42France · 8Spain · 3Belgium · 1