Roundabout design

Complete roundabout guidance is contained in FDM 11-25 and 11-26.

A detailed listing with direct links is provided:

• Intersection control evaluation (FDM 11-25-3)
• General design (FDM 11-26-1)
• Design process and qualifications (FDM 11-26-5)
• Multi-modal considerations (FDM 11-26-10)
• Agency and public coordination (FDM 11-26-15)
• Access control (FDM 11-26-17)
• Operations (FDM 11-26-20)
• System considerations (FDM 11-26-25)
• Principal based design guidance (FDM 11-26-30)
• Signing and pavement marking (FDM 11-26-35)
• Illumination, landscaping and maintenance (FDM 11-26-40)
• Work zone traffic control (FDM 11-26-45)
• Design aides (FDM 11-26-50)

Download Qualified Roundabout Designers list (April 22, 2025)

Contact:

John Jenkins, P.E.