Carlsbad Blvd. & Cannon Rd.

Carlsbad, CA


As requested by the City of Carlsbad, MTJ provided a peer review of the proposed roundabout application. This peer review was aimed at determining feasibility of a roundabout at this location.

Carlsbad Blvd. is a 4-5 lane roadway and it was determined that a solution focused on a road diet would improve safety and operations for all modes and transit. Key to this road diet for vehicular operations is utilization of roundabouts at the intersections along this corridor.


MTJ provided roundabout application services to determine feasibility. This included operational analysis and concept horizontal for this highly constrained and challenging intersection.

The MTJ optimized roundabout was designed to meet operational objectives and minimize adverse impacts to surrounding properties. The MTJ design provides optimal safety for all modes and adheres to the Complete Streets design principles. Additionally, the MTJ design includes innovative features that provide adequate vehicular operational performance, to include yield right-turn lane and flared entry approach.


  • Highly constrained
  • Accommodates peak tourist traffic
  • Compact urban design features

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