ETCS is not seen as the major driver of rolling stock strategy in CP5. Within CP5, the currently assumed programme of ETCS route fitment is relatively modest, but includes the removal of signals on the south end of the ECML. Fitment of ‘first of class’ of fleets for some subsequent routes will also be required. The benefits of transferring Class 16x (Networker Turbo) units from the Thames Valley (after electrification) to the west of England in place of Class 14x and 15x units is a possibility that might be assessed in the Great Western franchise process. .
