Does your department/service have SOP's or similar for multiple vehicles responding to the same call?
What I'm curious about, is whether they're allowed to follow each other or not?
We always taught that every vehicle responding, goes a different direction.
This had multiple reasons, but primarily-
1) Not all vehicles get caught up in the same traffic jams
2) Safety- Common problem is for civvies to give way to the first vehicle and not see or hear the second responding vehicle, resulting in a collision.
3) Avoids potential issues such as those depicted in my YouTube video, "How Not To Drive a Firetruck"
The counties in my area have a regional SOP for response to various types of incidents to include number of companies, positioning, fireground duties, etc. This SOP is followed within each county, and used when we run into another county on automatic aid. It makes life a lot easier. There's nothing in writting that says you have to come in from different directions to a scene, but it's something that's considered by the first arriving company, or Chief and then broadcasted via radio if needed.