Direct Answer
Manage revisions by maintaining a cloud-based drawing register with current revision levels, issuing delta drawings for minor changes rather than reissuing entire packages, and using a formal change authorization workflow so no revision reaches the shop floor without a paper trail. Fast-track projects require even tighter control because the window between design change and shop action is compressed.
Full Explanation
A revision management system should capture: what changed, why, who authorized it, which drawings are affected, and what was already fabricated. Delta drawings — drawings showing only the changed elements — are faster to produce and review than full re-issues. Color-coding revisions (R1 = yellow cloud markups, R2 = blue) lets shop personnel identify changes at a glance. Maintain a held-material log for any member that needs to be reworked due to a revision.
What This Means for Your Shop
Every revision to a fabricated member is a cost event. Track each rework hour against the revision that caused it, and maintain records for potential change order recovery from the GC.
Common Mistakes
Allowing verbal revision instructions on fast-track projects. 'The engineer said to add a stiffener' must be documented before the welder touches the beam. Verbal instructions that turn out to be incorrect create disputes with no paper trail.
Recommended Process
Establish a revision workflow at project kickoff: design change → detailer revises model → revised drawing issued with revision cloud → engineer approves → fabricator acts. No step can be skipped, even under schedule pressure.