RER D, Paris

Identification of the critical points and proposal of improvement measures for the RER D line in Paris

The RER D is one of five RER lines serving Paris, France. It connects Orry-la-Ville and Creil in the north to Melun, Corbeil-Essonnes and Malesherbes in the south, passing through the heart of Paris. Opened in several stages from 1987 to 1996, it is the longest RER line by distance, and the busiest SNCF line in France, carrying up to 615,000 passengers and operating 466 trains each working day. 


Together with its partner Alius Consulting, trenolab supports the operator SNCF Transilien in the analysis of operations and identification of infrastructure, timetable, and process improvement measures.

Our tasks:

  • Operations analysis
  • Timetable refinement
  • Infrastructure planning
  • Rolling stock rostering
  • Microscopic simulation model development
  • Microscopic simulation model calibration
  • Microscopic stochastic simulation
  • 2015/11 - 2017/06
  • France
  • SNCF Transilien
  • Timetable Planning, Integrated Service and Infra Planning
  • TRENOplus, TRENOanalysis, OpenTrack