Once again, guys....
678 car M-7 order
172 remaining M-3s (of 174) are being overhauled and kept in service
132 M-1s overhauled in late 90's will be kept in service even after all M-7s in current order are received
Do the math. The LIRR could not function properly with 850 EMU cars (678 + 172). It needs almost that many cars for A.M. commission hour. And usually at least 70 - 80 EMU cars are OOS for PI and repair.
Now, if the LIRR were to make a new deal in the future to secure funding for more new cars, that would of course be another story. (More new cars are on the Capital Program "wish list") But, the outlook for the EMU fleet as of today is as described above.
Tom