NR» have been working toward these trains for a few years, the aim is to get some basic switch and crossing renewals done in 8 hour possession's. The Rule Book is also being looked at to speed up the taking and giving up of Possession's (T3's) and electrical isolations.
Whilst this looks good on paper, the reality of an
S&C▸ renewal in 8 hours will mean that they are laid in and clipped up with a speed restriction over them with follow up work over several subsequent possessions. Most jobs need the full 8 hours just to deal with the signalling alterations and testing as they are not always 'like for like'.

The S&C renewal at Heywood Road is going to utilise these wagons I'm led to believe.
It all comes prefabricated on the wagons very little clipping to do on site,
S&T▸ are investigating plug and socket connections to speed things up. Yes there may be a period with
TSR▸ 's but a reduced speed for a week I am sure is preferred by the passengers than weekend blocks and buses