There was audio, as they were running for the train station of Rachel shouting that they needed to buy a ticket. Presumably they did so.
I do wonder what they show is going to do when someone gets in a serious car accident (though I’m sure they edited things to maximize apparent excitement) or run over by a train crossing tracks they shouldn’t.
I was wondering exactly that on this episode. Between the crazy driving and the running across railroad tracks and the physically pushing between tuk-tuks (which are not as massive as cars, but still) during the Roadblock, this seemed like an episode that had potential for some real injuries.