Not very relevant! Looks like you have copy pasted from elsewhere without giving much importance to the contezt.
And then there are too many assumptions - one kid on an unused track, divert the train to the unused one, kids(!!!) should apply sense!, people are at risk when diverted to the unused track.
do you think the train would be diverted if the unused track is not operational?
You started off well but ended up with too many unrealistic assumptions and made a mess of it.
