SNCF Réseau has launched a multi-line engineering blitz that will affect five RER lines (A, B, C, D and E), three Transilien commuter lines and two tramways from 13 – 21 June. The works include track renewal on the RER B north branch serving Charles-de-Gaulle Airport, signalling upgrades near Saint-Michel-Notre-Dame and platform extensions on the Tram 9 corridor. Headtopics reports that evening closures will begin as early as 22:00 on certain segments, with full-day shutdowns on the weekend of 20-21 June. Replacement buses will run, but journey times to CDG could double. The timing coincides with major trade fairs at Paris-Nord Villepinte, potentially complicating airport transfers for international delegates. Businesses relocating staff to the Paris region or hosting training sessions should share alternative routing options—such as the RoissyBus coach or shared-shuttle services—and consider arranging hotel stays closer to meeting venues to avoid last-train curfews. SNCF says the compressed works schedule allows it to deliver key capacity upgrades before tourist peaks tied to the Paris 2027 Expo. Nevertheless, expatriate commuters should expect recurring night and weekend disruptions through the summer as the upgrade programme continues.
Source: Headtopics France
