FHWA-NHI-380096 Modern Roundabouts: Intersections Designed for Safety-Marlborough

Date: 6/25/2020 8:00 AM - 6/25/2020 4:30 PM

Location: Courtyard by Marriott
75 Felton Street

Marlborough, Massachusetts




The modern roundabout is a proven strategy for improving the safety and operations of intersections. The physical characteristics of a well-designed modern roundabout reduce the frequency and severity of intersection crashes for all users including pedestrians and bicyclists. This course highlights the benefits of modern roundabouts and gives participants the fundamental knowledge needed to plan and consider applying roundabout intersection projects in their area. This course is an introductory level course with a blend of technical and non-technical planning, design and operations considerations.

Upon completion of the course, participants will be able to:
• Distinguish a modern roundabout from other types of circular intersections
• Describe the safety advantages of roundabouts
• Describe the operational advantages roundabouts provide
• Identify what type of locations roundabouts may be appropriate
• Describe strategies to overcome common barriers to implementation of roundabouts, such as negative public perceptions
• Describe the key considerations when planning an area's first roundabout
• Apply basic traffic operational models and capacity calculations for roundabouts
• Describe key geometric design principles of a modern roundabout
• Apply signing and marking suggested practices
• Apply design strategies for pedestrians and bicyclists

Transportation professionals with at least one year of working experience.


First Name Affiliation
Michael FHWA MA
Jessica VHB - Worcester
Tyler Stantec
Jessica Jacobs
Wayne Design Consultants, Inc. (Somerville)
Susan VHB
Janhavi Howard Stein Hudson Boston HSH
Chris Stantec
Alex Stantec
Dylan TEC, Inc.
Kevin Howard Stein Hudson
LeighAnne WalkBoston
Timothy Pare Corporation
Timothy Greenman - Pedersen, Inc.
John The Engineering Corporation
Daniel City of Somerville
John City of Newton DPW
Sean Town of Barnstable
Todd Town of Brookline
Jason Town of Dedham
Joseph Town of Barnstable
Dan Town of Brookline
Melissa City of Newton
Manuel Department of Conservation and Recreation
Isaac City of Newton
Mahendra MA Department of Conservation and Recreation (DCR)
Alfredo City of Newton
Matt Town of Lexington DPW
  • Ken Sides
    Senior Transportation Engineer at Sam Schwartz

    Ken Sides, PE, PTOE, is a Senior Transportation Engineer with Sam Schwartz Engineering in Tampa, Florida.  He has over 25 years of engineering experience in transportation engineering.  Beginning in 1998, his roundabout project experience includes managing 25 modern roundabout projects, including 11 roundabout corridor projects, including several that incorporated road diets.  Most of his projects included streetscaping and livability elements.  All but the first one of his many modern roundabout projects have been very strongly supported by the public.

    Mr. Sides’ first roundabout was the pioneering Clearwater Beach Entryway Roundabout in 1998.  His roundabout projects have won nine engineering, planning and construction awards.  He teaches roundabout courses for the National Highway Institute and the University of South Florida.  Mr. Sides has extensive experience in presentations and public outreach.  He has published nine articles on modern roundabouts.

    Mr. Sides is a long-serving member of both the Transportation Research Board (TRB) Roundabout Committee and the Institute of Transportation Engineers (ITE) Roundabout Committee, and he is chair of the TRB Sub-Committee on Autonomous Vehicles and Roundabouts. TRB is an arm of the National Academy of Sciences. He is a certified Professional Transportation Operations Engineer (PTOE), an accredited member of the Congress of New Urbanism (CNU-a), a certified bicycle safety instructor (LCI), and a certified bicycle group Road Leader/Road Master.  His peers have named him Engineer of the Year four times (2004, 2008, 2011, and 2013).