As you can see, this is a huge obstacle for those wanting to get out of that door. I have had companies do inspections and when I asked about the exterior, especially the rear of the building, I would get blank stares.
It is important to check out the exterior in particular where the exit discharge is. These areas should be level, lit and clear of obstacles.
An engine company could inpsect the interior of this building and never notice this unless they do a 360 of the building. This is another time when your tactics are the same for fire suppression as they are for prevention. As I have said before, inspections and prevention are the first steps to situational awareness. Stay safe and be careful.