N. 124th St. & Cactus Rd. / Anasazi Elementary School

Scottsdale, AZ


The City of Scottsdale was seeking a solution to the school traffic congestion and safety at the existing stop-controlled intersection adjacent to Anasazi Elementary School.


MTJ’s horizontal geometric designs for this intersection is predicated on traffic engineering and roundabout design principles and overall project objectives, to include:

  • Adherence to speed control safety criteria
  • Optimal roundabout safety for all modes
  • Large truck/bus movements design vehicle
  • Minimize adverse ROW/environmental impacts
  • Match proposed new cross sections
  • Minimize roadway reconstruction and costs
  • Accommodate Complete Streets cross sections
  • Pedestrian safety design principles in NCHRP 834 – Crossing Solutions at Roundabouts and Channelized Turn Lanes for Pedestrians with Vision Disabilities (and PROWAG)


  • Adjacent to elementary school
  • Complete Streets/multimodal
  • Avoids adverse ROW impacts
  • Maximizes ped/bike safety
  • Mini-roundabout application; 85’ ICD
  • Large truck/emergency response vehicle accommodation
  • Accommodates on-street parking

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