ID:805101
 
Problem description:
how to change to a different map file at runtime?
This might be what you are looking for

http://www.byond.com/developer/LummoxJR/SwapMaps
sorry, i guess my first post was not to clear. what i need is to load a different map when the usr walks on a certain turf
You can use swap maps to do this ...

Look at the demo see verb Jumptomap, then incorporate that into a turf's Enter() proc.