Roundabouts in Massachusetts State of the Practice at Mass. DOT
Roundabouts in Massachusetts § Overview of current Mass. DOT’s approach to “modern roundabouts” § Negative connotation to the roundabout due to the “rotary” design § Changing driver behavior starts from the top with the Drivers Manual and education of the future motorists in the Commonwealth § Winning the public over to the benefits of a roundabout versus the traditional intersection design
Roundabouts in Massachusetts “Text Book Design” vs. the New England Intersection – Why we have a tough time selling a roundabout. - Standard design layout is hard to obtain and build without ROW takings.
Roundabouts in Massachusetts § What are our biggest challenges: § Overcoming the stigmatism of the “rotary” § Addressing the peak-hour volume flows § Providing for accommodation of all users § Gaining public trust in the dedicated lane assignment configuration of a roundabout § Documenting the safety benefits of the reduction in crashes at roundabouts § Obtaining buy-in from the Public Safety community
Roundabouts in Massachusetts Design Challenges – § Achieve desired capacity with 2 lanes § Provide better pedestrian access § Offer improved Aesthetic qualities § Accommodate the bicycle community
Roundabouts in Massachusetts So where are we now? Mass. DOT has begun to request project designers and private developers to consider roundabouts as a “first option” to address a uniform approach to traffic operations and providing accommodation for all road-users. Roundabouts are now being considered as viable options for interchange junctions.
Roundabouts in Massachusetts COMPLETED IN DESIGN
Roundabouts in Massachusetts Next Steps for Mass. DOT § Working with the Central Transportation Planning Staff (CTPS) from the Boston MPO on the development of a “Roundabout Planning Screening Tool” to assist designers in when to consider a roundabout versus a signalized intersection. § Develop a “Local Community Reference Guide” to provide details on the benefits of roundabouts on traffic calming and livable streets. Ensure that a roundabout is considered for the correct reasons.
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