The existing railway is already four-tracked and rather underused. And while separating out the two separate fast and slower tracks will be complicated, it is by no means impossible - or even that expensive.
Source: wiktionary
Four-tracked
Synonyms for "four-tracked" (1 found)
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Closest matches (1)
Adjective(1 words)
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1 entriesTranslations
1 translations across 1 languages.
German
1 entries- viergleisig adj ((rail transport) having four running lines)
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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.