Belle runs a dance hall in Springfield, Marge knocked down some of house with a bulldozer. Belle made mMarge as a stand up comic between numbers.
Well Belle found Marge is still working to have run out of town. Belle fondness for classic outfits is not only old fashion taste. Belle likes old DiD (Damsel in Distress) scenarios.
Hopefully the trains do run like the rest of Springfield, Homer is on the way to rescue Marge. As soon he picks up isa from school.