The odds that emergency personnel will be dispatched to I95 is about 100%
The odds that emergency personnel will be
quickly (as specified) dispatched to the specific vehicle in question, the train, in a timely manner is
close to (as specified) 100%, and that the priorities of authorities will be to respond to that specific vehicle in question and focus their energy and attention on it.
In other words, the focus on a disabled train issue is much more likely to singularly-focused and quickly initiated. When it comes to cars in different types of roadway issues (I did not specify I-95 only, because unlike a train track, car journeys are not restricted to that specific roadway alone), the quickness of dispatch could be quite varied, and thus might be smaller for those isolated on a roadway.