PS,
You have the details for the scheme, and as you say you are the person dealing with the scheme, so it should be a situation you are comfortable with, but regarding your logic on the "door that people entered through" consider these scenarios.
Would you take the same approach with stairs, if a building had 3 escape stairs and only one was used for access, whilst the other 2 were dedicated escape stairs, would you require the access stair to be enlarged because more people would head for that stair on the same principle.
Or
If the doors do open in the direction of escape, could you not then get the situation where 150 people may head for the door through which they came, which may only be 800mm wide. Do you now look for that door to be widened, on the assumption that it is now not suitable.
I do not necessarily agree or understand the logic behind some items included in standard guidance, but this is national guidance and is therefore assumed to be a good starting point, what is the point of this guidance if we are going to apply our own extra requirements to make us feel comfortable.
I am not questioning your decision for the doors to be altered, but just trying to ensure you consider all factors when making that decision. The fact that you have asked the question, searched out and shown interest in others opinions is a positive step!!
