Hi kurnal,
Firstly thank you for your help. To answer your questions:
The shop is two stories high and the upstairs has its own escape route, although if there was a problem with that route, this would be the only other way out.
Yes you do have to walk more than 90m from the back to the front exit.
The corridor is about the width of a double fire door however because storage chillers are along this corridor, there are two guide rails for the doors either side of the corridor so it is slightly smaller in width. If you put one storage cage in the corridor, there would only just be enough room for another cage to be wheeled past with the person in front of the cage not next to it. The cages are approx. 2m high x 1m wide x 1m depth so i'm sure you get the ieda that the corridor is very small.
As to who would use this corridor, predominantly staff but if there are a lot of customers then they may be allowed to use it as long as someone like me was with them.
The corridor has storage chillers for 4 different departments and I know from my department that space is definitely an issue. Currently we have to deal with waste stock in this corridor, we have no where else to deal with it. The warehouse manager won't allow us to work outside because he feels that we make his warehouse look untidy. Space definitely needs to be organised else where but I think some of it is "I can't be bothered, why should I" which unfortunately has been brought on through very, very bad management (No excuse though).
Would any of this information change anything or make it more important for the route to be kept free? Thank you.