Federal Manual on Uniform Traffic Control Devices — signs, markings, signals: design, placement, warrants. Florida adopts per s.316.0745 F.S.; FDOT supplements via FDOT Traffic Engineering Manual (TEM).
Why: legal standard for every TCD; warrants (signals Ch. 4C, multiway stop, ped signals) come from here.
When:
- signal warrant analyses
- sign/marking design & review
- school zones
- TTC principles (Part 6, implemented in FL via Standard Plans 102-series)
Example questions:
- which of the 9 signal warrants might apply and what data does each need?
- advance warning sign spacing?
- when is a marked crosswalk appropriate?
Spawn: warrant-by-warrant data checklist · SPM Plan Review Checklist feeds.
Interim Approvals (e.g., RRFB history) live on the FHWA site — check IA list for newer devices.
Free companions
11th Edition official page — full free PDF, the 2009→11th Edition redline, summary of changes, known-errors list, hotlinked navigation version, and two recorded FHWA webinars.
Revision 1 (Dec 2025) is out. Before citing a section, confirm you're reading the revised text; and when a reviewer learned on the 2009 edition, the redline is the fastest way to show exactly what changed.