
On 22 January 2026 mobility-app Moovit issued an alert detailing extensive night-time and weekend engineering works across the Île-de-France public-transport network for the remainder of the month. Key points include full evening closures of driverless Metro line 14 after 22:00 four nights a week, early-morning Sunday suspensions on Line 1, and late-evening branch closures on Line 13.
Commuter-rail services are equally affected: RER A services between Nanterre-Préfecture and Cergy/Poissy will not run after 22:00 on weekdays; RER B’s northern segment between Gare du Nord and Aulnay-sous-Bois faces repeated weekend blockages linked to CDG Express construction; RER C trains will stop running through central Paris from 23:00 nightly, while RER D and E have rolling nocturnal interruptions from 22:30 onwards. Tramway T1 is partially closed to enable extension works.
The works form part of the Grand Paris transport modernisation and are essential to integrate new lines ahead of the 2027 Olympic legacy timetable. However, they force business travellers and daily commuters alike to rethink late-evening meetings, shift patterns and flight connections that rely on rail links to Charles-de-Gaulle and Orly.
Amid these scheduling headaches, international travellers should also ensure that travel documentation is in order: VisaHQ’s online platform (https://www.visahq.com/france/) can fast-track French and Schengen visa applications, provide real-time status alerts and arrange door-to-door courier options, reducing one more layer of uncertainty while passengers negotiate disrupted late-night services.
Companies with offices in La Défense or the inner suburbs are circulating transport-alternatives charts, recommending earlier departures, car-pooling or the use of taxi vouchers where public transport is unavailable. Travel-management firms are updating arrival instructions for visiting executives, advising against tight evening itineraries.
RATP and SNCF urge passengers to consult real-time journey planners and warn that replacement bus capacity is limited. Employers should remind internationally mobile staff that these outages can add 30–60 minutes to airport transfers and may invalidate pre-booked train-to-plane connections.
Commuter-rail services are equally affected: RER A services between Nanterre-Préfecture and Cergy/Poissy will not run after 22:00 on weekdays; RER B’s northern segment between Gare du Nord and Aulnay-sous-Bois faces repeated weekend blockages linked to CDG Express construction; RER C trains will stop running through central Paris from 23:00 nightly, while RER D and E have rolling nocturnal interruptions from 22:30 onwards. Tramway T1 is partially closed to enable extension works.
The works form part of the Grand Paris transport modernisation and are essential to integrate new lines ahead of the 2027 Olympic legacy timetable. However, they force business travellers and daily commuters alike to rethink late-evening meetings, shift patterns and flight connections that rely on rail links to Charles-de-Gaulle and Orly.
Amid these scheduling headaches, international travellers should also ensure that travel documentation is in order: VisaHQ’s online platform (https://www.visahq.com/france/) can fast-track French and Schengen visa applications, provide real-time status alerts and arrange door-to-door courier options, reducing one more layer of uncertainty while passengers negotiate disrupted late-night services.
Companies with offices in La Défense or the inner suburbs are circulating transport-alternatives charts, recommending earlier departures, car-pooling or the use of taxi vouchers where public transport is unavailable. Travel-management firms are updating arrival instructions for visiting executives, advising against tight evening itineraries.
RATP and SNCF urge passengers to consult real-time journey planners and warn that replacement bus capacity is limited. Employers should remind internationally mobile staff that these outages can add 30–60 minutes to airport transfers and may invalidate pre-booked train-to-plane connections.









