Delete I can find a few sites describing why the last car in Indian trains has an X symbol: [1], [2], [3], but that doesn't make it a notable concept, since these are just quirky did-you-know sort of items. Analogy: I can find articles explaining why pencils are often painted yellow: [4], but that doesn't make Color of pencils a notable concept. WeirdNAnnoyed (talk) 01:38, 11 July 2024 (UTC)[reply]
Merge with End-of-train device (as I suggested when deprodding), which is another technology with the same purpose (and likely there are others from different railways around the world). This isn't notable on it's own, but the broader concept is and the target article itself is possibly too narrow on it's own. Thryduulf (talk) 17:19, 11 July 2024 (UTC)[reply]