Knowing how much my followers love massive PDFs about French railways, here's Adrien Thérond's master's dissertation on how TERs in Centra Val de Loire are dealing with increased passenger numbers
https://drive.google.com/file/d/1XOLthgIZ9BIb_6OcxpenKzYCeWm6JFYh/view
juicy bits:
1) contracts penalise the SNCF for running shorter trains than planned but no incentive to run longer ones
2) SNCF software is so bad that trains can only be listed full for their entire journeys. The SNCF creates fake trains to solve this
1/2