NEW MassDOT Roundabouts Guidance

On September 23, 2020, MassDOT announced the release of the MassDOT Guidelines for the Planning and Design of Roundabouts.  This publication, dated September 2020, is the first formal guidance document issued by MassDOT dedicated to the planning and design of roundabouts.  It may be used immediately as a supplement to the Project Development and Design Guide and in conjunction with other relevant planning and design guides.

MassDOT will not print or distribute copies of this publication.  It is publicly available in electronic format (.pdf) on mass.gov: https://www.mass.gov/doc/massdot-guidelines-for-the-planning-and-design-of-roundabouts/download

In addition, MassDOT is pleased to provide planners, designers and other interested parties with detailed information about the benefits and operation of roundabouts.  Designers should review and apply this information often, especially when evaluating project design options at intersections: https://www.mass.gov/roundabouts

For additional information regarding this release, please refer to Engineering Directive E-20-006, MassDOT Guidelines for the Planning and Design of Roundabouts, dated September 23, 2020: https://www.mass.gov/doc/guidelines-for-the-planning-and-design-of-roundabouts/download

Thank you for your attention to this information.  If you have any questions or concerns, please feel free to contact: Thomas A. DiPaolo, PE, Assistant Chief Engineer, MassDOT – Highway Division
10 Park Plaza | Suite 6340 | Boston, MA 02116