Geograph - photograph every grid square

There used to be a network of railways on the Isle of Wight. Most were closed in the 1950s and 1960s leaving just one survivor, the line from Ryde Pier Head to Shanklin. This line was electrified using the third-rail system, but work was carried out in a tunnel at Ryde to prevent flooding. This resulted in the tunnel being too small for full-height trains. Since then, the railway on the Isle of Wight has been operated by old London Underground "tube" trains.

Further work in early 2021 will prepare the line for its third successive generation of former London Underground trains. This will include lowering the track in the tunnel once more, as the trains will be larger than those they replace.

Signalboxes are used in Britain to control the safe movement of trains across the railway network. Most are located either just outside stations or at junctions.
Wikipedia: Link

Brading station is a Grade II listed railway station Link serving Brading on the Isle of Wight. It is located on the Island Line from Ryde to Shanklin. Owing to its secluded location and single operational platform, it is one of the quietest stations on the island. The station opened in 1864.
Link

Listed buildings and structures are officially designated as being of special architectural, historical or cultural significance. There are over half a million listed structures in the United Kingdom, covered by around 375,000 listings.
Listed status is more commonly associated with buildings or groups of buildings, however it can cover many other structures, including bridges, headstones, steps, ponds, monuments, walls, phone boxes, wrecks, parks, and heritage sites, and in more recent times a road crossing (Abbey Road) and graffiti art (Banksy 'Spy-booth') have been included.

In England and Wales there are three main listing designations;
Grade I (2.5%) - exceptional interest, sometimes considered to be internationally important.
Grade II* (5.5%) - particularly important buildings of more than special interest.
Grade II (92%) - nationally important and of special interest.

There are also locally listed structures (at the discretion of local authorities) using A, B and C designations.

In Scotland three classifications are also used but the criteria are different. There are around 47,500 Listed buildings.
Category A (8%)- generally equivalent to Grade I and II* in England and Wales
Category B (51%)- this appears generally to cover the ground of Grade II, recognising national importance.
Category C (41%)- buildings of local importance, probably with some overlap with English Grade II.

In Northern Ireland the criteria are similar to Scotland, but the classifications are:
Grade A (2.3%)
Grade B+ (4.7%)
Grade B (93%)

Read more at Wikipedia Link