About 300 professionals deliver an impressive range of engineering, mapping, environmental, architectural, and survey services at Ayres Associates. Our filterable database makes it easy to check out the credentials of key staff in the disciplines of interest to you – and to contact them directly to get more information about working with you on a project.

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Daniel Hartig

Transportation Engineer

Phoenix, AZ

"I have really enjoyed working for Ayres. I like the size of the company, and I like the sharing of information and open communication. It's very much a family atmosphere. I also enjoy getting to work on a variety of projects."
Daniel Hartig

Dan joined Ayres Associates in 2008 with more than 34 years of experience in traffic studies and design, transportation engineering, and planning. He has been project principal, project manager, or task leader for the preparation of traffic engineering plans, specifications, and estimates (PS highway PS corridor studies; traffic impact studies; and intersection improvement designs. Dan has also served as project principal or project manager in the preparation of more than 15 transportation plans, ranging from arterial street plans to multi-modal master plans. Dan has facilitated public and stakeholder meetings to achieve consensus and provided leadership to and fostered teamwork among traffic and transportation engineering staff.

Dan's areas of expertise include the following:

  • Traffic studies
  • Transportation engineering
  • Transportation planning
  • Traffic impact studies
  • Corridor studies
  • Intersection improvement design
  • Public involvement
  • MEngr, Traffic, Pennsylvania State University
  • BS, Civil Engineering, University of Delaware
  • Registered Professional Engineer, AZ