Dear Jasmine san
Attached dwg is my proposal of Evacuation plan because shutters are not allowed to use as escape door;
1) provide escape doors on position of red circle (middle of factory)
2) re-arrange Exit signs and Exit directions
3) provide escape stair/ladder from first floor level of bridge.
Please inform that 1) & 3) are for architectural change and 2) is for electrical arrangement.
and send me full set of dwg/pdf including architectural dwgs as listed ANNEX-1 of my comment.
BRDs
Nishimura @TKO