Grand Paris Express Line 18 Opens Massy-Palaiseau to Christ de Saclay
DELAYEDDate confidence: DELAYEDThe date has movedHow firmly the source words the date: confirmed, scheduled, estimated, delayed or unverified.Show all DELAYED pins9 weeks late68% CONFIDENCEOverall confidence: 68%How well the pin's source and references back up its dates.Weighted average of how firmly 5 references, the source included, support the pin's start and end times; a reference counts half as much for every 180 days older than the newestShow all pins from 50% to 74% confidenceThe Societe des grands projets says service "pourra intervenir a compter du 30 novembre" after a two-month dry run; Sortiraparis[2][4] says the opening was "originally set for 1 October 2026".
The first stretch of Paris Metro Line 18, the region's first new metro line in thirty years, can start carrying passengers from 30 November 2026, with the opening expected the first week of December. It slipped from 1 October 2026.
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