My understanding is that we are moving away from using motif files. Per the most recent FDOT CADD training videos, your plan sheets for example, reside in a single PLANRD01.dgn file as separate models, and the file also acts as your motif for that series of plan sheets. Is this an accurate statement?
I don't know if their standards do or do not support "motif" files, but in ORD, it is still possible to use them.
Charles (Chuck) Rheault CADD Manager
MDOT State Highway Administration