So, when you say renumbered, is this at the station itself? Must be a reason for this?
If there are any trains that are using the Down North Bay in passenger service, then the platform indicator screens will show 1B (i.e. Platform 1, Bay). The main reason is to easily distinguish it from the remarks row on the screens otherwise showing "that little platform in between Platforms 1 & 2".
The platform number (originally Platform 2) was removed during rationalisation, although I'm not sure of the exact date.
One of the operational problems with the platform is that trains terminating at Banbury have no direct access, which is similar to Platform 1 at Leamington Spa. Any arrivals from the north have to come into Platform 3 and then reverse via the ground signals along the Down Main or Down Goods to come back in again.
Usual margins to achieve this during the timetabled service are few, but during engineering work there is an ideal opportunity to do so.
The Down North Bay has been variously used to stable Thunderbird locomotives, during the lead-up to Operation Princess and before the full use of the Voyager fleet. After that point, Chiltern have used it overnight and during the day to stable units waiting for their next turn of duty.
There is a lot going to happen at Banbury, but nothing seems to be happening right now.
When is work going to start on the Platform 4 and its loop? Do we know if anything is happeneng on the depot site? Has the facing crossover and the down loop to down main crossover by the stone terminal been finished? When do we expect to lose our lovely semaphores? - and the signal boxes themselves? Questions, questions!
The site of the former MPD has been undergoing work for the past few weeks. If I've understood correctly, I believe that the former turntable pit was the first thing to be filled in towards the back of the site (nearest the River Cherwell, furthest away from the running line). Note the area of light coloured stone/gravel.
This week has seen some of the shed roads being cleared of overgrown vegetation/earth.
Most of the recent periods of engineering work have concentrated on new point ends/crossovers being installed. Some of which are visible from public road bridges, but others only seen from riding on the trains.
There are a lot more pieces of new infrastructure to go in (and obviously the old pieces to take out). Safe to say that the semaphores will be around for a few months more yet.