An excellent report and is essentially saying that the main RER sections will effectively become subway-lite systems.
Noteworthy that they recommend, for RER, single level trains with 3 doors on each side and level boarding so passenger flow is optimised and allows for quick entry/exit like a subway does. It also states that for newer or outer area services that don't have catenary wires, batteries trains would be ideal. Funny how I have consistently stated that battery/catenary single level trains would be the best option.
I REALLY hate to say I told you so, but..........................