The Line Committees

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Ile-de-France Mobilités maintains a close dialogue with public transport stakeholders in order to inform the decisions taken in terms of the development of the transport service. Various bodies aim to inform, consult and share the results of studies carried out with stakeholders in the Ile-de-France transport network

The line committees

Line committees were set up in Île-de-France for the first time in 2007, then generalized when the contract between STIF and the operators RATP and SNCF for the period 2008-2011 was renewed. The line committees are an opportunity to present an assessment of the operation of the network and the actions put in place: they help to place the axis in question in the overall transport system. The line committees are led by Île-de-France Mobilités and chaired as often as possible by an elected member of its Board of Directors. The services of Ile-de-France Mobilités, the operator and the infrastructure manager review the line's performance and then present its prospects for improvement.

As places where needs are listened to and needs are expressed, the line committees make it possible to enrich the proposals for the development of the service through a shared vision of the various stakeholders. The following are systematically invited:

  • representatives of local and regional transport users' associations,
  • the members of the Mobility Partners Committee,
  • local authorities hosting a station or concerned by the service perimeter of a line (municipalities, inter-municipalities, departmental councils, Île-de-France regional council and neighbouring regional councils in the event of a trans-regional service or impact on the TER network),
  • parliamentarians,
  • economic partners (CCI, airport managers, event site operators, etc.)
  • the operator of the line,
  • the infrastructure manager

The observations and proposals made during the meetings will feed into the studies and decisions of the organising authority.

Works Committee

Every summer, the need for maintenance and modernisation of the infrastructure requires work to be planned on the transmission lines of the Ile-de-France network. Prior to the annual communication campaign , committees are organised twice a year to present the programme of works and traffic interruptions in detail to the elected representatives of the local authorities concerned and to the representatives of user associations.

Works committees are also organised for long-term closures outside the summer period.

Every year, at the start of the school year, a report on the summer work is presented to all transport users' associations.

Last updated on May 27, 2025.

Find below the documents presented during these meetings:

RER network

RER A

2017 – 20 February: Presentation of the Redesign of the RER A / L3 offer

2014 – 12 June: ReportPresentation of Île-de-France MobilitésPresentation of RATP and SNCF

2012 – 15 May: ReportPresentation of Île-de-France MobilitésPresentation of RATP and SNCF

2011 – 20 January: ReportPresentation of Île-de-France MobilitésPresentation of RATP, SNCF and RFF

2009 – 25 June: ReportPresentation of Île-de-France MobilitésPresentation of the SNCF and RATP

2007 – November 13: Report 

RER B

2025 – 9 April: Presentation of Île-de-France Mobilités and the Unified Line Management

2023 – 27 November: Presentation of Île-de-France Mobilités and the Unified Line Management - Audit Ramette Action Plan - Record of exchanges

2022 – 20 December: Presentation of Île-de-France Mobilités and the Unified Line Management

2021 – 2 April: Presentation of Île-de-France Mobilités and the Unified Line Management

2019 – 12 March: Presentation of Île-de-France Mobilités and the Unified Line Management

2017 – June 28: ReportPresentation of the Unified Line Management

2014 – 8 July: ReportPresentation of Île-de-France MobilitésPresentation of the Unified Line Management (DLU)

2012 – 6 July: ReportPresentation of Île-de-France MobilitésPresentation of RATP, SNCF and RFFPresentation of the RER B Nord+ project

2010 – 29 November: ReportPresentation of Île-de-France MobilitésPresentation of RATP and SNCFPresentation of RFF

2009 – 3 November: ReportPresentation of the SNCF, RATP and RFFPresentation of the work

RER C

2025 – 26 March: Presentation of Île-de-France Mobilités and SNCF

2024 – 31 January: Presentation of Île-de-France Mobilités and SNCF

2022 – 17 February: Presentation of Île-de-France Mobilités and SNCF

2021 – 10 May Joint Committee for projects and works: Presentation of Île-de-France Mobilités and SNCF

2019 – 20 June: Presentation of the SNCF

2019 – 4 February: ReportPresentation of Île-de-France Mobilités and SNCF

2017 – 10 January: ReportPresentation of Île-de-France Mobilités and SNCF

2013 – 6 February: ReportPresentation of Île-de-France MobilitésPresentation of the SNCF and RFF

2011 – 10 February: ReportPresentation of Île-de-France MobilitésPresentation of the SNCFPresentation of RFF

2009 – 16 December: ReportPresentation of Île-de-France Mobilités 1/2Presentation of Île-de-France Mobilités 2/2Presentation of the SNCFPresentation of RFF

– 12 May: ReportPresentation of Île-de-France Mobilités 

RER D

2023 - 20 November: Presentation of Île-de-France Mobilités and SNCF

2021 - 30 November: Presentation of Île-de-France Mobilités and SNCF

2019 – 22 May: Line Committee – feedback from the 2019 Annual Service: Report

2018 – 18 June: ReportPresentation of Île-de-France Mobilités and SNCF

2018 – 5 June: Consultation meeting in Evry: Presentation of the SNCF and Ile-de-France Mobilités

2017 – December 5: Update 

2014 – 10 July: ReportPresentation of Île-de-France MobilitésPresentation of the SNCFPresentation of RFF

2012 – 19 December: ReportPresentation of Île-de-France MobilitésPresentation of the SNCF and RFF

2011 – 14 October: ReportPresentation of Île-de-France MobilitésPresentation of the SNCFPresentation of RFFSummary of the LGM audit report

– 11 February: ReportPresentation of Île-de-France MobilitésPresentation of the SNCFPresentation of RFF

2009 – 29 June: ReportPresentation of Île-de-France MobilitésPresentation of the SNCF

RER E

2025 - 11 March: Presentation of Île-de-France Mobilités and SNCF

2017 – 10 July: Territorial Committee for RER E North and T4 Lines: Presentation of Île-de-France Mobilités and SNCF

2016 – April 20: Report 

2014 – 27 November: ReportPresentation of Île-de-France MobilitésPresentation of RFF/SNCF

2013 – 12 April: ReportPresentation of Île-de-France MobilitésPresentation of the SNCF and RFF

2011 – 27 June: ReportPresentation of Île-de-France MobilitésPresentation of IDFM of interchange hubsPresentation of SNCFPresentation of RFF

Transilien network

Transilien H

2020 – 23 November: ReportPresentation of Île-de-France Mobilités and SNCF

Transilien J

2013 – 28 June: line J North: ReportPresentation of Île-de-France MobilitésPresentation of the SNCF

2009 – December J5 Mantois via Poissy: Presentation of Île-de-France Mobilités 

2008 – 22 October J5 Mantois via Poissy: ReportPresentation of Île-de-France Mobilités 

Transilien K

2024 – 6 December: Presentation of Île-de-France Mobilités and SNCF

Transilien L

2014 – 6 November: evolution of the L sud and U offer: ReportPresentation of Île-de-France MobilitésPresentation of the SNCF

2013 – 17 December: ReportPresentation of Île-de-France MobilitésPresentation of the SNCFPresentation of RFF

– 2 July: ReportPresentation of Île-de-France MobilitésPresentation of the SNCF

Transilien N

2023 - 3 April N&U Committee: Presentation of Île-de-France Mobilités and SNCF

2013 – 7 June: ReportPresentation of Île-de-France MobilitésPresentation of the SNCF

2009 – 17 November: ReportPresentation of Île-de-France MobilitésPresentation of the SNCF

2008 – 22 October Dreux-Mantes axis: ReportPresentation of Île-de-France Mobilités 

– 20 October Rambouillet axis: ReportPresentation of Île-de-France Mobilités 

Transilien P

2016 – April 20: Report 

2014 – 27 November: ReportPresentation of Île-de-France MobilitésPresentation of RFF/SNCF

2013 – 12 April: ReportPresentation of Île-de-France MobilitésPresentation of the SNCF and RFF

2011 – 27 June: ReportPresentation of Île-de-France MobilitésPresentation of IDFM of interchange hubsPresentation of SNCFPresentation of RFF

2009 – 23 March La Ferté-Milon/Château-Thierry/Crécy-la-Chapelle branches: ReportPresentation of Île-de-France MobilitésPresentation of the SNCF

– 17 March Provins/Coulommiers branches: ReportPresentation of Île-de-France MobilitésPresentation of trafficPresentation of the SNCF

2007 – 16 July Paris - Meaux: ReportPresentation of Île-de-France Mobilités and SNCF

Transilien R

2023 - 4 December: Presentation of Île-de-France Mobilités and SNCF - Statement of exchanges

2021 - 16 April: Presentation of Île-de-France Mobilités and SNCF

2009 – 9 July: ReportPresentation of Île-de-France MobilitésPresentation of the offerPresentation of the SNCF

2008 – 21 October Paris Montargis axis: ReportPresentation of Île-de-France Mobilités 

– 23 October Paris Montereau axis: ReportPresentation of Île-de-France Mobilités 

Transilien U

2023 - 3 April N&U Committee: Presentation of Île-de-France Mobilités and SNCF

2014 – 6 November: evolution of the L sud and U offer: ReportPresentation of Île-de-France MobilitésPresentation of the SNCF

Metro Network

Line 1

2012 – 14 February: ReportRATP presentation on automationRATP presentation on operations

Line 13

2018 – 12 April: ReportPresentation of the RATP

2015 – 14 April: ReportPresentation of Île-de-France MobilitésPresentation of RATP

2013 – 9 October: ReportPresentation of the RATP

2012 – 16 May: ReportPresentation of Île-de-France MobilitésPresentation of RATP

2011 – 7 March: ReportPresentation by RATPPresentation by Île-de-France Mobilités concerning the extension of line 14 to relieve congestion on line 13Presentation by Île-de-France Mobilités concerning the reinforcement of bus services

2009 – 15 December: ReportPresentation of RATP - Presentation of Île-de-France Mobilités

Tramway network

Tramway T1

2024 – 27 February: Presentation of Île-de-France Mobilités and RATP

2023 – 11 January: ReportPresentation of Île-de-France Mobilités and RATP

Tramway T2

2023 – 27 September: ReportPresentation of Île-de-France Mobilités and RATP

2019 – 20 November: ReportPresentation of Île-de-France Mobilités and RATP

2018 – 18 December: ReportPresentation of Île-de-France Mobilités and RATP

2018 – 13 June: ReportPresentation of Île-de-France Mobilités and RATP

Tram-Train Network

Tramway T4

2023 – 27 March: Presentation of Île-de-France Mobilités and SNCF

2021 – 22 September: Presentation of Île-de-France Mobilités and SNCF

2020 – 15 December: Presentation of Île-de-France Mobilités and SNCF

2017 – 10 July: Territorial Committee for RER E North and T4 Lines: Presentation of Île-de-France Mobilités and SNCF

Entire Network

Presentation of the spring/summer 2025 works

- Metro network, T1 and T2 trams: Presentation of Île-de-France Mobilités and RATP

- LAJ lines: Presentation of Ile-de-France Mobilités – RATP – SNCF 

- N&U lines: Presentation of Île-de-France Mobilités and SNCF

- RER B: Presentation of Ile-de-France Mobilités – RATP – SNCF

- RER C: Presentation of Île-de-France Mobilités and SNCF

- Lines D and R: Presentation of Île-de-France Mobilités and SNCF

- Lines E and P: Presentation of Île-de-France Mobilités and SNCF

- Lines H and K: Presentation of Île-de-France Mobilités and SNCF

REX Summer Work

2023 - 28 September: Feedback from the 2023 summer works – Presentation of Ile-de-France Mobilités – RATP – SNCF

2022 - 28 September: Feedback from the 2022 summer works – Ile-de-France Mobilités – RATP – SNCF presentation

2019 – 1 October: Feedback from the 2019 summer works – Presentation of Ile-de-France Mobilités – RATP – SNCF